Harem is What I Want

Synopsis This is the story of a young man who travels to various universes to enjoy a peaceful life. He is a narcissist. He is a person who loves to show off and really didn't like to be lowkey or hide his strength, he really was a straightforward person. Some of the worlds he would visit: First world : Against the Gods Second World : One Piece Third World : Naruto Fourth World : Cultivation worlds ( BTTH, Soul Land, Martial Peak, Apotheosis, Rebirh of the Urban Immortal Cultivator, etc) English is not my main language, I am writing this to improve my English. So please forgive me if the grammar is really bad.