The Guardians of Otoko: Rise Again

In the wake of the destruction of the Island of Okoto, 9 legendary heroes find themselves scattered across a strange new world. Once protectors of their homeland, they are now lost and searching for purpose. As they meet all kinds of new people and forge new friendships, they end up learning the secret to this world. He inherits the legacy of an ancient civilization and works together with the kings of some very laid-back countries.