Arafou Boukensha, Densetsu to Naru: SS-Rank no Musume ni Kyouka Saretara SSS-Rank ni Narimashita

An ordinary guy becomes SSS rank with his daughter's enhancement magic!? One day, retired adventurer Wolf is entrusted with a mysterious baby, Reminia. Growing up as a daddy's girl, she earns the title of "Great Hero" and begins serving in the royal palace. Worried about her father who lives far away, Reminia secretly enhances her physical defense, magic defense, agility, and automatic recovery to the maximum level—a story of a retired adventurer's rise to power that will make his blood boil!

(Source: Comic Meteor, translated)