Arafo Boukensha, Densetsu ni Naru: SS Rank no Musume ni Kyouka Saretara SSS Rank ni Narimashita - Ch. 1.1

[MangaDex]

 

[GrimGriefer]

this doesnt make sense. 15 years later and the child looks to be about 5

 

[VladDracul2]

this doesnt make sense. 15 years later and the child looks to be about 5

Fifteen years after he began adventuring... I think...