Amaesasete Hinamori-san!

Known throughout the school for her selflessness and perfect grades, Yaya Suo has won the admiration of every single underclassman–including Ichigo Hinamori. Turned down by her crush because of her childish image, Ichigo wishes nothing more than to be as mature and elegant as her senpai. But Ichigo's perfect image of Yaya is shattered when she comes across her wallowing in self-pity one day. The real Yaya is clumsy, clingy, and selfish–not at all like the perfect act she puts on. What's more, she's desperately starved for attention and now she won't leave Ichigo alone!

(Source: Kodansha USA)