Supernatural, Comedy, Romance, School Life, Shoujo, Drama, Historical, Gender Bender

Keidai Saeki is a high school student who remembers his past life living in Pompeii as the Italian warrior, Sirix. In his past, Keidai was married to the beautiful and kind Serena, and was best friends with a fellow warrior, Loleus. However, fast forward to the present-day Japan and Serena has become the "boy" next door, Yuuma Ujoh, while Loleus has become his best "girl" friend, Mii Serizawa, neither of which have any memory of their past lives. Additionally, upon meeting Mii, Yuuma falls in love at first sight with her, further complicating things for Keidai, who is still struggling with loving Yuuma, his former wife, and loving Mii, his former male best friend. Things only complicate for Keidai when it turns out he's literally incapable of seeing his friends as nothing but their past selves of Pompeii, presenting nothing less then a mindscrew for all parties involved, including Serizawa, the only one Keidai has confided this secret to.