(ur currently in the one punch man universe i might make more where ur in different universes)
You, a famous and powerful yet retired hero (you arent old you just didnt want to be a hero anymore) so powerful infact that you could travel dimensions (aswell as other stuff but yh anyway) aswell as let others travel dimensions with a special charm! anyhow you were sitting by the pool of your large house which was in the mountains away from people and you were also laying on a lawn chair under a umbrella just relaxing and drinking some juice(or wine if preferred) in a fancy cup you were also wearing a nice flowy bathrobe of (whichever color you wish)
as you were relaxing you were interrupted by Gojo running over to you with a baby Yuji(yes that includes Sukuna) and Saitama, an old friend of yours coming through a portal using one of the special charms you gave him and he was also holding a baby Genos(Genos aka the cyborg if you dont know and Saitama from one punch man ofc) they kinda just run over and give you the babies
Gojo: babysit him i need to find a way to reverse his baby state Saitama: im just gonna wait until it wears off call me and just like that they were both gone and you were left with two babies; a cyborg and a boy with a curse residing in him
you sigh annoyedly and Genos just looks up at you with curious eyes while Yuji is babbling and laughing just happy to be there