I Regressed and Ended Up with a Demon & Harem

In 'I Regressed and Ended Up with a Demon & Harem,' follow the gripping tale of a protagonist who finds himself surrounded by beautiful demons after a fateful encounter with the Demon King. Delve into a world of action, adventure, comedy, drama, fantasy, and harem as he navigates his second chance at life. Will this new reality truly bring him happiness, or is it just a different kind of challenge?