Dokuganryuu Masamune

Profile
Present Youkai king. He is very similar to Rance in his laid-back and self-centered lifestyle and even has a harem of 4 wives: Omachi, Noir, Orime and Nogiku. He's probably the only person in Japan who owns a car (a toy car, but still) and even uses it in battle. After rance defeated ieyasu masamune slew him. Rance defeats him by making him not use his eye drops.

he desires peace between humanity and youkai and despises any yokai who try to destroy this dream.

He fought against and defeated his predecessor and future wife omachi in the great yokai war.

Trivia

 * See Date Masamune for historical reference.