The four Sakimiya sisters all have their own love lives to deal with when it comes to being in love with other women. The eldest Ryou is dating her student Hikari, the second sister Serina has feelings for one of her coworkers, the third sister Yuika likes her childhood friend Miu, and the fourth sister Mizuki is going out with Tachibana, her teammate on the basketball team. (Source: MU)