Mahou Tsukai de Hikikomori?

Shuutarou is a 90 year old "fairy" who was reincarnated by the Goddess into another world. He wishes for a "healthy body," however, he is gifted with cheat abilities to use powerful magic instead! After his parents died, he gets fostered by a woodcutter that was a former adventurer. After 11 years, he has become an apprentice adventurer at that guild then the goddess suddenly comes to him in a dream and asks him to go on a journey. So along with his beast mount companion, Pheles, they go out to adventure the world!

[Web Novel (English)](https://www.whimsicalstargazers.net/shut-in-magician/)