Yuuto is sent back to modern Japan, where he's forced to make a choice: stay there with his beloved Mitsuki, or go back to save everyone.
But if you were my wife,
Aber wärst du meine Frau,
Pero si eres mi esposa,
sí puedo decírtelo.
Pero si eres mi esposa,
sí puedo decírtelo.
Mais…
Ma se fossi mia moglie,
Mas se você fosse minha esposa,
Но, если бы ты была моей женой,