くたびれサラリーマンな俺、7年ぶりに再会した美少女JKと同棲を始める

A beautiful high school girl suddenly shows up at the door of Yuya Amae, a tired salaryman! It is Aoi Shiratori, his childhood friend, who has come to ask Yuya to marry her… again! And so begins their life of living together! Yuya tries to act like a responsible guardian, but Aoi's aggressive approach is causing his resolve to waver…? A JK childhood friend with a marriage proposal! A sweet ideal romantic comedy! (Source: ComicWalker, translated)