理不尽に彼女に振られ心を折られた俺、元同級生でクラスのアイドルだった美少女をヤリサーから助けたら、灰色だった大学生活が輝きだした件 (Associated Names)

I was dumped by my girlfriend as soon as I entered school, and what awaited me was a new youth with a beautiful girl!? “Let’s put an end to this already.” With just that one message, Keito Nogami was suddenly dumped by his girlfriend since high school, Asuka Umeno, shortly after entering university. Apparently, she…