Zense to Gense to Kimi to Ore

He stopped in a local coffee shop to get out of the rain. When high school student Takashi met the beautiful shopkeeper Isao, it was love at first sight. When one of the regular customers, a fortune teller, comes in, Takashi gets a fortune from his previous life and a time skip back to Ancient Egypt! What awaits him there is a love triangle that transcends time and space. Also contains additional story You In My Jeweled Mirror: After being abandoned by his parents, a young boy meets a mysterious man, a fox god who will take care of him, if the boy will pray to his shrine... - Datenshi Blue