At the end of the Okinawa trip, Sueharu was injured catching Shirokusa in a fall. So Shirokusa decides to stay at his house for a while to care for him, pleased with the chance to get ahead of the other two girls. But Shion, the maid accompanying Shirokusa, has harsh words for Sueharu with regard to his half-hearted attitude toward everyone. The next day, Maria starts attending their school, creating a harem around Sueharu that earns him the contempt of all the other boys.
Maru's an idiot, so he sees 
her as a real little sister!
!مارو غبيّ، لذا يراها كأخت صغيرة حقيقيّة
Maru es un idiota
y de verdad la ve como su hermana.
Maru es idiota
y de verdad la ve como su hermana.
Maru est un crétin, heureusement,
il la prend vraiment pour une sœur !
Maru è un idiota,
quindi la considera come una vera sorellina!
Maru é um idiota, então ele a vê
como uma irmã de verdade!
Мару идиот и относится к ней
как к младшей сестре!