[Himeno Mikan] Until The Day We Meet Again (COMIC LO 2023-10) {Mistvern}

When little Akari tells the man she calls Nyanta that she's moving away, she offers him a farewell neither will forget - her petite body spread across his bed, eager kisses, fingering and cunnilingus, and a breathless promise that he must take her virginity and make her his bride the day she turns eighteen. Seven years of longing later, a grown Akari bursts back into his life clutching a completed marriage registration, her once-childish frame now bloomed into full curves that strain her school uniform as he gropes her chest in celebration. A bittersweet time-skip romance where a scumbag's defloration and nakadashi become the foundation of a vow finally kept.