|Year||2nd year in high school|
|Japanese Seiyuu||Yūma Uchida|
Yuuma is noted by other students to be quite handsome and attractive with short greenish-grey hair, the same eye color as his hair and a well-built frame.
Unlike Saki Kamisato (Yuuma's girlfriend), Yuuma is a charming and friendly person who cares for the well being of others not for social gain but for good intentions as a friend as he is usually the one to approach social outcasts like Sakuta Azusagawa, containing his character as a nice individual.
On his way to school with the train, Yuuma was with Sakuta Azusagawa, who asked him if he liked bunny girls, but Yuuma told him he loved them. Moments later while walking to school, Sakuta asked Yuuma if he could see Sakurajima in front of him, which was met with a yes. Yuuma told Sakuta that he is happy that he finally shows interest in other girls than Shoko Makinohara, but he doesn't think that Sakuta had a chance. Then his girlfriend Saki came and took him with her. On the next day, Yuuma learning that Sakurajima had gone on hiatus after middle school and that she started high school mid-way through the first year.
Sometime later, at work, Sakuta asked Yuuma if he knew why Sakurajima went on hiatus and Yuuma guessed it was probably to focus on studying or superficially.
One day after work, Sakuta asked Yuuma about Yosuke Maezawa and Yuuma explained he had a girlfriend from a different school and that he often talks badly of his girlfriends. On the next day, Sakuta told Yuuma that he needed to talk with his girlfriend as she was annoying him, and Yuuma told him he will. Yuuma then asked him if he going out with Tomoe was real and as Sakuta replied positively, Yuuma told him some rumors the basketball team was talking about her.
One night, Sakuta called him saying that Rio Futaba was in a pinch and called him to come. Yuuma came as quickly as he can asking Rio if she was okay and if Sakuta did something. Rio then started crying realizing she wasn't alone. Yuuma told Sakuta to get them some juice and later the three spend the night playing with fireworks. Yuuma then wanted the three to go next week together at the fireworks festival and they all agreed. A week later, during the festival, Rio came with yukata and Sakuta commented she was cute and Yuuma agreed. Rio confessed her feelings to Yuuma, but before he could reply, Rio claimed that she already knew the answer. She then told him to make up with his girlfriend, before wiping away her tears to watch the fireworks.
Having been friends since they were younger, Yuuma refers to Sakuta by his first name when speaking to him. He is one of the few people to not shun Sakuta after the incident with his sister, Kaede Azusagawa and is willing to disagree with his girlfriend when she tries to make him stop being friends with him.
Rio has a crush on Kunimi. She first started to develop feelings for him in their first year of high school, when he gave her a bag of bread. She finally confessed her crush to Kunimi on August 19th, watching the fireworks in the summer festival. He was going to say he had a girlfriend, but Futaba told him not to say anything because she knew he didn't reciprocate these feelings and because he had a girlfriend. However, the two still remained friends.
Saki is Yuuma's girlfriend. As she cares about her reputation, she is rather protective of Yuuma, as shown when she told Sakuta to stop hanging out with him and when she removed Sakuta from Yuuma's contact list.