The Titan's Bride : Uncut

Premium Edition of The Titan's Bride! (includes all "good parts") Koichi Mizuki is about to graduate, but before he can, he is summoned to a world of Giant Titans by ancient magic.

It's the land of Tildant, Where the Prince, Caius, appears in front of Koichi and says, "Destiny has brought you to me. You are my fated bride!"