Uta is Shinoda's favorite student, she always favors him over other students. Once she found out Uta had a girlfriend, Shinoda was determined to win him back. She called Uta out and used the excuse of 'thinking too much about random things so can't focus on studying' to give him a blowjob, helping him focus on his studies. And because Uta already had a girlfriend, Shinoda was adamant that giving a blowjob was not cheating on his girlfriend, so he wouldn't feel guilty and could enjoy this pleasure with her. Just giving a blowjob with her mouth wasn't satisfying enough for Shinoda, so she used her vagina to 'suck his dick', because her vagina only 'sucks his dick' so it wasn't considered cheating. From then on, Shinoda 'took care' of Uta's ejaculation, they had sex, oh sorry, 'sucked dick' everywhere in the school, from the medical room, equipment room to even in the middle of the classroom during exams. Uta also gradually fell for Shinoda's techniques, he developed feelings for her and drifted apart from his girlfriend...