Love in Punishing: Gray Raven

Ai Ji, a handsome man who never ages, has no interest in ordinary women and loves mechanical girls most of all (half-mechanical ones are fine, too).

"Marry me, Luna!"

"Marry me, Lucia!"

"I love you, Rosetta!"

"I..."

The Construct women all blushed, then kicked Ai Ji in the face.

This is a story about love and peace (dead serious).

(Note: The setting differs somewhat from the original game.)