Read manga: The Gal Who Comes To My House Every Day Has Zero Boundaries But Isn't Kind

manga
Summary:

Class queen Manami Fuwa has been gaining weight lately. To make matters worse, a rival girl is taunting her in class, calling her a "muscle ball with money". When Taichi Utsuki can't contain his thoughts about her weight, he's forced to accompany Fuwa on her diet! A romantic comedy of dieting with a violent, irrational, selfish girl with no sense of emotional distance begins.