Ane Jiyoku Tsukushi: Nee-san no Shitagi Episode 1

Ema, the poised and stunning student council president; Ryuka, her younger sister who shines like an idol and is always surrounded by friends; and Mizuki, the ordinary male student who is the younger brother of the two sisters. Despite being teased by Ema and treated like a servant by Ryuka, Mizuki eventually finds himself in a relationship, much to the surprise of his sisters. As spring arrives, the older sisters become more involved in Mizuki’s life, but suddenly, his newfound happiness is threatened. Seeing Mizuki in distress, Ema decides to take action to help her brother, showing a side of herself that she rarely reveals.