The Villainess Harem Was Never Part of My Plan

Ethan Ravenscroft reincarnates as the destined hero of an otome game, only to realize that every route ends with his death. His only chance of survival is simple: avoid all the villainesses who are supposed to destroy the kingdom. Unfortunately, things go horribly wrong. The exiled ice princess wants to become his bodyguard. The infamous yandere duchess insists that fate itself brought them together. The demon queen, feared by the entire continent, only smiles when she sees him. As powerful women who should have been his enemies gather around him, Ethan slowly changes the tragic future of the world. Yet the more hearts he saves, the more dangerous his situation becomes, for some forms of love are more terrifying than any war. — Description from novelcodex.org