Dekisokonai to Yobareta Moto Eiyuu wa, Jikka kara Tsuihou Sareta node Suki Katte ni Ikiru Koto ni Shita

Sinopsis

"I can finally go search for the peaceful life I've been looking forward to since my past life." Allen, a boy called a failure because he was not blessed with a "Gift" from god, is actually a former hero who still has the memories and powers of his past life?! Using his banishment from his family's duchy as an excuse, Allen is about to start a carefree journey to do whatever he wants when he comes across an attempt on the life of his ex-fiancée...?! The former hero wants to live a relaxing life this time around, but the heroic fantasy life he never wanted is about to begin! (Source: Crunchyroll)

Trailer