Crossing reality for love

Breanna, Ana, Viqtoria, and Ema land in the infamous manga/anime the blue exorcist world. Ana happens to fall in love with a certain older twin and son of satan, Rin Okumura. Breanna happens to find the demon king of Earth as her love interest. That just leaves Ema and her minion Viqtoria to fall in love with the same person, Yukio, at the same time. Yukio plays with their hearts and uses them for his advantage, Rin does not approve of this at all. In this adventure Yukio ends up being bad, Rin later starts to hate Yukio. Mephisto decides to play the role or maybe he truly is a protective brother over Amaimon and Rin. Plus they play as important spots in his plans for Assiah.