Ayakashitsukai no Yomesagashi

Ryuuichirou moved to the countryside in order to attend university, and gets attacked by the handsome landlord, Akon Tenkawa. Akon says he's been searching centuries for Ryuuchirou and that they used to be lovers. Ryuuichirou has no memories of their past lives and naturally refuses Akon's advances, and yet his heart...!

(Source: xiaojiangworld)