I got a few for you!
BEHOLD, my collection of randomness!
Redeem: Only One Forever
https://www.mangago.me/read-manga/redeem_only_one_forever/
The MC gets regressed into his childhood body and needs to re-establish a connection with his future lover, who's not really keen on being bothered by a brat.
The story, despite the shady seeming setup, ......
