Shijou Saikyou no Mahou Kenshi, F Rank Boukensha ni Tensei Suru ~Kensei to Matei, 2 Tsu no Zense o motta Otoko no Eiyuutan~

Yuri was the hero who saved the world, being called "Demon Emperor" in his first reincarnation and "Sword Saint" in his second reincarnation. However, before he knew it, he was considered a "monster" and was shunned by people. Yuri finally gets fed up and decides to live 100% for himself next time. He reincarnates into the future and is immediately attacked by monsters. As he defends himself, Yuri acquires the skills of his previous lives and quickly annihilates his enemies. Eventually, Yuri arrives at the adventurers guild and decides to start his life as an F-rank novice adventurer while hiding his true strength.