FallDown: Kikuchi Ryou
Kikuchi Ryou is a delinquent leading a routine life with his little sister until one day he starts seeing MAMIYA, who claims to be his father. --Kikuchi Ryou route description
After Natsume Souichirou's funeral service at the church concludes, Ryou turns to leave, a pen falling out of his pocket as he does so. The Protagonist picks it up and gives it back to Ryou. Ryou thanks him, saying that the pen was given to him by Natsume, who was his classmate. Natsume had lent him the pen when Ryou had left his at home. When Ryou had tried to return the pen the next day, Natsume had insisted he keep it, and although Ryou had planned to give it back eventually, Natsume died before he was able to. Although they weren't particularly close, Ryou remembered Natsume positively and attended his funeral because he wanted to say goodbye.
On the way home from the funeral, Ryou gets into a fight. He returns home to his apartment, where he lives with his little sister Kikuchi Midori and their abusive mother, who is frequently out of the house, either at work or on dates.
The next day, Ryou goes to school. Generally, he only attends school for one or two classes a day, and otherwise spends his days at various part-time jobs or watching over Midori. When he walks into class, the rest of his classmates instantly shut up, finding him intimidating due to his reputation of getting into fights.
On this particular day, Ryou leaves school early to pick up Midori from the playground. She says she wants to go to the beach despite it being winter, so the two of them walk down to the ocean. Midori runs off while Ryou looks out over the water, but she returns to Ryou soon after to tell him that she found a person passed out in the ocean. Thinking about Natsume and not wanting another person to die, Ryou drags the man out of the water while he sends Midori to grab a towel.
The man wakes once he's out of the water, and he introduces himself as Suou Keito. Midori gives Keito the towel. Thankful, Keito asks what Ryou's name is, but Ryou tells him not to worry about it, not wanting Keito to get involved with him. He suggests that Keito go to a hospital, and Ryou and Midori leave the beach.
On the way home, a man who Ryou had previously defeated confronts him. Ryou tells Midori to head home without him, and stays back to fight the aggressor. The fight ends when Ryou is hit with a brick, causing Ryou to pass out.
After Ryou wakes up, he starts to head home, only to run into a strange boy wearing a bunny mask. The boy introduces himself as MAMIYA, and says that he's wanted to meet Ryou for a very long time. Ryou is about to tell him off, but MAMIYA disappears. Once he's home, makes dinner for himself and Midori. Their mother does not come home that night.
The next morning, Ryou wakes up and finds MAMIYA in his room, freaking him out. MAMIYA follows Ryou to school, saying that he is Ryou's father. Toujou Minato shows up and joins Ryou on the way to school, and when Ryou responds to something MAMIYA says and Minato only reacts with confusion, Ryou realizes that he is the only one who can see MAMIYA.
On his way to work, Ryou passes a man getting beat up by a bully. Ryou ignores them, but as he watches, Keito tries to help the victim by pretending to call for the police. The bully runs off, but when Keito approaches the victim, but instead of thanking him, the man says Keito shouldn't have helped and runs off. Ryou goes to work to his job at a donut shop, and, shortly after, Keito shows up as well. He tells Ryou he's been searching for him, wanting to return the towel the Kikuchis gave him. He asks for Ryou's name again, and Ryou finally tells him. As they talk, Midori shows up at the donuts shop as well, and she says she wouldn't mind seeing Keito again. So Keito continues hanging out with Midori and Ryou, and the Kikuchis start accepting his presence.
Ryou notices that Midori is being bullied at school, but as part of their mutual agreement where Midori ignores his fights, Ryou pretends not to notice her struggles at school. When they meet up with Keito later on at the playground, Keito confides in Ryou that he got into a fight with his mom and doesn't want to go home. To encourage Keito to make up with his mother, Ryou writes him a letter, telling Keito not to open it until he gets home.
As Ryou gets ready to head home, MAMIYA shows up and tells Ryou once more that he's special. Ryou hits him on the head. Ryou and Midori go home, but as they're getting finished getting out of the bath, their mother arrives home. She is extremely drunk, and she calls for Ryou to helps her undress in the middle of the living room. Their mother heads stumbles over to her room, and is suddenly enraged when she sees Midori blow-drying her hair on her bed. She kicks Midori off her bed, yelling about how she hates her and wishes her ex, Osamu, was here. MAMIYA shows up to console Ryou, telling him that while children cannot choose their homes, MAMIYA chose Ryou.
