The Demon King's 21st Century Wives [Harem Slice of Life]

Nero Alrac Zolt is a name of a demon king that stroke fear to many 1000 years ago. But now in the 21st century, that name means nothing. After a betrayal, Nero wakes up in the 21st century in the alleyway of a restaurant and has only one goal - reclaim his throne and find the culprits responsible for his murder.