My_Sugakookies's manga / #age gap(2)

Plot: A high school boy who's always considered himself to be an alpha finds out that he's an omega?? And his destined partner is a kid?

Plot: "Please don't cry! I promise, one day, I'll become a strong person, all for your sake!" This were the words that a cute, pure-hearted prince said. However, Atsushi is nothing more than an elementary school student! And for Yuuji to have his first kiss stolen by this kid, after the horrible experience of being rejected by the guy he confessed to, a tale of love, change, and happiness 10 years apart!