Nariyuki Yuiga - 唯我成幸

Yuiga has been appointed by the principal as [Rizu](https://anilist.co/character/121776) and [Fumino](https://anilist.co/character/121775)'s tutor to get them into their desired universities. Later is also asked to tutor [Uruka](https://anilist.co/character/121778).