Otonari no Senpai wa, Zurui Kurai ni Aishitagari.

When she starts high school, she begins to live on her own, but gets lost on campus and is almost late for the entrance ceremony. She is saved by a handsome senior who was sleeping in the garden, but she makes a promise to do whatever he says... Moreover, the senior student is Haruse Akio, the most popular boy in school, and to her surprise he is the neighbour of Kiruwa's room! For some reason, she is taken in by the careless and indifferent Akio, but she is thrilled to be pampered by him both at home and at school...?