Four years ago, legendary assassin Fable killed a group of men involved in a ring dedicated to
kidnapping women to make them work the night. Every kill was quick and secret until the last
one: the criminal was behind the wheel when Fable gets him, and his body accidentally fell on the
car controls, making it move. What Fable hadn't noticed was a kidnapped girl named Hinako on the
back seat, who was now trapped inside a vehicle out of control. Not wanting innocent people to
get hurt, Fable jumped on top of the car to rescue her. After lots of struggling caused
by the car gaining speed, Fable managed to climb inside and pick up Hinako to then jump out of the
window right before the car fell from the parking garage into the ground. Fable and Hinako landed
on top of another car, and after making sure the girl was alive, Fable fled. Nowadays, Fable isn't
working as an assassin anymore. His boss told him he became too dangerous and ordered him to live
an ordinary life without killing or there would be consequences. Therefore, Fable has started
using the civilian name Akira, has rented an apartment with his partner Yoko while pretending
to be siblings, and has gotten a job at a design company. There, he works with his boss Takoda,
designer Misaki, who used to be a pinup girl, and designer Kainuma, who knows about Misaki's
past and is still obsessed with her to the point of having his entire room covered with
her pictures. None of Fable's coworkers know anything about his real identity. Meanwhile
Hinako is in a wheelchair because of the fall four years ago, and after her parents' death,
she was taken under the care of Utsubo, the president of a non-profit organization. In front
of the public, Utsubo presents himself as a sweet guy that cares for people with special needs,
especially children; but when he's alone with Hinako, he takes advantage of her. He also scams
parents by framing their kids as criminals and asking for money to send these bad guys
to rehabilitation centers in other countries, when actually he kills them and buries them in
the forest using an excavator. Utsubo has two guys working for him: expert assassin Suzuki,
and scammer Isaki, who Suzuki thinks isn't trustworthy but deals with him anyway because
Utsubo thinks he may have important information since Isaki used to work for Fable's agency. It
turns out Utsubo was the real boss behind the illegal ring Fable went against four years ago,
and now he wants revenge. One afternoon, Hinako goes to the local park to use the monkey bars,
hoping that some exercise could help her walk again. She starts at the highest bar which
causes her to immediately fall, and this is seen by Fable who is passing by. He tells Hinako that
is indeed possible for her to walk again, it'll just take lots of time and training, but Hinako
thinks he's just a random creep and leaves. Later when he returns home, Fable asks Yoko to remind
him of the details behind his mission four years ago, which immediately confirms his suspicions:
the girl from the park is the same girl he saved that day, and now he's feeling guilty about her
disability. The next day, Fable returns to the park to watch Hinako falling at the bars again
and advises her to start at the lowest bar. However Hinako still considers him a peeping
creep and returns home, where she rants about the weirdo in the park to Suzuki, who promises
to take care of this weirdo. In the meantime, Utsubo and Isaki have decided their next scam
victim will be Kainuma, and their plan consists in using his obsession with Misaki. They show up
at Misaki's and pretend to be investigators that specialize in finding bugs and hidden cameras,
telling her they're here to check her apartment when they're actually going to install those
cameras. Sometime later, Fable goes to the park again, but instead of Hinako he finds Suzuki,
who hits Fable and asks him to leave Hinako alone. When Fable returns to the office, Takoda gives him
a new task to do: they've designed some flyers for a non-profit organization and Fable must deliver
the final product. This is how Fable ends up at Utsubo's place, and when Hinako recognizes him,
Utsubo invites Fable to come in after making sure to hide his computer with all of Misaki's hidden
camera recordings. Utsubo is touched to hear Fable cares about helping Hinako walk again and looks
forward to working with him in the future while Hinako still considers him a creep, but when Fable
shows how socially awkward he is, Hinako warms up to him. Afterward, Fable goes home and tells
Yoko he's met Utsubo, who he was supposed to kill four years ago together with the others but his
boss canceled him at the last minute. He wonders if he should kill him now, but Yoko reminds him
they aren't supposed to be doing that anymore. The following day, Hinako returns to the park and uses
the lowest bar like Fable told her to, this allows her to stand up without falling. She's incredibly
proud of herself but unfortunately, Fable isn't there to see her, or so she thinks. Fable is
actually hiding behind a tree, not wanting to be seen as a creep anymore. Meanwhile Utsubo
pretends to be a detective while Isaki plays the role of Misaki's agent to carry out the next part
of their plan, unaware that Hinako has come back from the park and is listening in the hallway.
They've invited Kainuma and his mother over to accuse the guy of having installed cameras
in Misaki's apartment, presenting the recordings they've made as proof. Kainuma denies everything,
but his mother knows him well and believes it, so she's willing to pay money to settle the manner
without a scandal in court. Later in the evening, Kainuma uses a knife to destroy his pictures of
Misaki, swearing revenge because he thinks she framed him. The next day at the office, Kainuma
can't stop himself from losing control at the mere sight of Misaki and attacks her, but fortunately
Fable is there to quickly knock him out. Not to worry Misaki, Fable pretends Kainuma was going
after him, and while they talk, Kainuma wakes up and escapes. When Fable tries to follow him,
he finds Suzuki taking Kainuma away in a van. Suzuki warns Utsubo that he was seen by Fable,
so Utsubo tells him to take care of him, which is heard by Hinako through the door. Moments later,
Suzuki hands the van with Kainuma to Isaki so he can go looking for Fable, who is already
waiting for him. Fable gives Suzuki twenty-four hours to bring Kainuma back if he doesn't want
consequences, then he goes away, leaving Suzuki wondering who this guy actually is. Afterward,
Suzuki calls Isaki to make him force Kainuma to give him Fable's address. Then, Isaki stops the
van in order to relieve himself, giving Kainuma the chance to escape. When Isaki returns to the
van, he's shocked to see his prisoner is missing and starts the vehicle to go looking for him,
but it turns out Kainuma had been behind the van, and now Isaki has run over him, instantly killing
him. Meanwhile Suzuki goes to Fable's apartment, which he recognizes as belonging to a secret
agency. This finally makes him realize who this Akira guy really is, but when he gets inside and
tries to threaten Yoko into confirming his theory, he doesn't realize she isn't a civilian and puts
his guard down. This gives Yoko the chance to quickly overpower him and knock him out before her
stew burns. When Fable comes home in the evening, he finds Suzuki tied to a chair and takes the
chance to make him call Isaki in order to release Kainuma. After hearing Kainuma is dead, Fable lets
Suzuki go, which greatly crushes Suzuki's pride. Since killing Isaki as punishment for his mistake,
Suzuki goes to see Utsubo to tell him he's found the legendary Fable. Suzuki doesn't think Utsubo
can take on Fable and needs a good reason to attack him again, so Utsubo explains that the guy
driving Hinako around four years ago had been his brother and his death has been haunting him since
then. This is all a lie to make his backstory more dramatic and Suzuki buys it, promising to
help Utsubo kill Fable but only if they make a decent plan. Once again, all this is heard by
Hinako from her room. The following day, Hinako returns to the park to keep practicing on the
bars and when she falls again, Fable approaches her to help her massage her legs. Hinako starts
to wonder what kind of life he used to have when suddenly, a shot is heard and Fable falls dead,
only for Hinako to wake up and realize it was all a dream. At dinner, Hinako tells Utsubo she knows
he wants to hurt Fable and asks him not to do it because Fable is a friend that has given her
self-confidence. To change her mind, Utsubo tells Hinako that Fable was the assassin that killed
the guy in her car four years ago and also her parents, mentioning the method he used to prove
he's researched Fable well. In the morning, Hinako asks for a gun, so Utsubo gives her an empty one,
promising bullets later once she gets used to the responsibility. Then, Utsubo calls Fable and tells
him to come to his office in an hour to discuss Hinako's future. Fable accepts and ignores Yoko's
warnings about this being a trap, he already knows that but he has to go anyway to face his guilt,
but Yoko can come too for backup. When Fable makes it to Utsubo's place, he immediately can tell
there's a grenade waiting for him behind the door, so he jumps into a different balcony right before
Utsubo's apartment explodes. Suzuki is watching from afar and sends a whole squad after Fable,
including setting up a sniper and a bunch of assassins on a set of scaffoldings. Fable rushes
from apartment to apartment, quickly knocking out any enemy that gets close enough. Eventually
he tries to take a shortcut by jumping between the outer walls and has no trouble knocking out
the men that follow him there, but as soon as he reaches the ground, he gets another call telling
him a bomb has been left with a deaf girl on the tenth floor. Not willing to let a kid get hurt for
him, Fable begins climbing the scaffoldings, and whenever a thug tries to attack him,
Fable uses a special gun Yoko made for him that shoots fake bullets capable of knocking out but
not killing. Meanwhile Yoko is trying to go after the sniper, and the little deaf girl is going out
to the balcony to catch a stray balloon. When Fable finally makes it to a balcony,
he finds himself surrounded by more men, and he has to fight them all by jumping into and out
of the scaffoldings to keep them guessing until he can finally make it to the tenth floor. The
sniper can't shoot yet because the kid is out, and inside her apartment, there's another thug
waiting for Fable who starts a fight as soon as he sees him. This hesitation allows Yoko to find
him and knock him out. In the meantime, Fable is wasting too much time with this fighter and it's
giving the chance for more thugs to come closer. Needing a quick solution, Fable decides to throw a
grenade at the scaffolding to make it come off the wall and leave all the enemies hanging. With the
other guy off his back, Fable rushes to rescue the girl, dragging her back into the apartment
right before the scaffolding finishes falling, only to discover there's no bomb in her backpack,
it had been a lie to bring Fable into the trap. At that moment, Fable notices Suzuki leaving and
calls Yoko to give him the model of the car so she can follow him. Then, Fable stops to grab a bite
and call some of the agents from his agency to ask for a ride. Moments later, Yoko finds herself
in a forest, and Suzuki gets to capture her by pretending to throw a grenade at her when it
was actually a rock. Utsubo and Hinako are there as well, and after Suzuki ties Yoko to a tree,
Utsubo gives Hinako some bullets and asks her to shoot Yoko to practice. To everyone's surprise,
Hinako shoots Utsubo instead, but he turns out to be fine because he's wearing a bulletproof vest
under his jacket. Hinako accuses Utsubo of being the person that killed her parents because he
knew the method the killer used, which nobody knew outside the police, and Utsubo admits it's true:
Hinako's parents had proof of Utsubo involvement with the night worker ring and he had to kill them
before they went to the police. Hearing this makes Hinako have a breakdown and fail all her
following shots, but since Utsubo keeps taunting her, she forces her body to stand up and leave the
wheelchair to try to reach him. Hinako barely gets to take two steps before Suzuki stops her
with a warning: there's a landmine right under her feet, and if she moves it'll explode. This
stops her from moving but she still shoots her last bullet, which pushes her back - fortunately
Fable shows up just in time to catch her and prevent her from activating the mine. Suddenly,
Utsubo throws a grenade, thus Fable shoots him to make him fail his aim and covers Hinako with his
own body to protect her from the explosion. Then, he asks Suzuki for help, because he knows he's an
assassin with certain limits like him. Suzuki accepts, and after freeing Yoko so she can keep
an eye on Utsubo, he drives the excavator to cover the area with the landmine. This allows Fable to
quickly pull Hinako away, and the two of them get pushed back without getting hurt thanks to the
excavator bucket containing the explosion. Finally giving up, Utsubo throws a grenade at them,
causing Suzuki to react by instinct and kill him with a quick shot. The grenade doesn't explode
because Utsubo never activated it, it turns out he just wanted them to shoot and ends things
for himself. After burying Utsubo with the help of the excavator, Fable and Yoko try to leave,
but first Hinako forces her body to awkwardly walk in order to hug Fable and thank him. A
few days later on Christmas eve, Fable receives a letter from Hinako, who asks him to burn it after
reading it. In this letter, Hinako explains that four years ago she had run away from home after
a fight with her overprotective parents, and her naivety made her an easy target to kidnap.
She never held a grudge against Fable because that day he saved her from a dark future, and
now that she's working hard on her rehabilitation, she hopes she can see him again in the summer when
she can finally walk again. As Fable burns the letter, he hopes he can see her again as well.