Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru S01

"I'm only living for myself now!" The only thing the world's strongest assassin knew in his life was to follow the orders of his superiors - until they decided to kill him. He was brought back to life by the blessing of a goddess, to a world filled with swords and magic. He was given a chance to change his life this time. But it's not that simple... He has to defeat a super hero who intends to destroy the world. Our greatest assassin, now known as "Luf Tuwata De", had a very busy life, especially with all the girls surrounding him. Maybe Luf was an unparalleled assassin, but how would he deal with opponents with magical powers?