Eiyuu Sonogo no Second Life: Shikashi Kodomo ni Ryouri wo Furumau no wa Tanoshii Kamo na

Silenzio Agata, a hero of unparalleled fame known as the "Sword of Alba." His second life suddenly begins as a carefree school life?! After whimsically saving the life of a feathered fairy along the way, he ends up studying abroad at a "school for elven boys and girls"?!

(Source: Kadokawa, translated)