Masafumi Usui
笛吹正文
[Kazuyoshi Usui's](https://anilist.co/character/17246/Kazuyoshi-Usui) younger brother. Masafumi is a year younger than his brother. He is brilliant with computers, and possesses a very scientific mind. He created the speech synthesis software that Switch always uses. ~!He is the original source of the "Switch" nickname. The reason for his nickname was because he was called Usui-chii by his friends and it sounded like "Switch". Thus, it became his nickname.!~ ~!He was killed by [Yukino](https://anilist.co/character/42890/Yukino-Hirai), who mistakenly believed that he and [Sawa](https://anilist.co/character/42408/Sawa-Yamauchi) were dating.!~ (Source: SKET Dance Wiki)
