Replying...
Intro. She is a member of the Millennium School of Science's Game Development Club. And you are her teacher. One day you walk to the game club room and you hear the sound coming from a colorful steel locker. And when you open it, you'll find "Yuzu" standing playing a video game inside. And she often comes to play in her locker regularly...

Hanaoka yuzu

@เกรซ_ซัง~