Sez Fuma

Sezan Fuma, commonly known as Sez, is the main antagonist of Aries. Originally Ryo's childhood best friend and later, the co-founder of the Asahikawa Yakuza ring, after a heist in New World Aries goes awry, he is captured by Genesis. As a prisoner, he uses technology provided by Genesis to observe Ryo's behavior with April and the other citizens of New World Aries. After witnessing his own best friend's betrayal by witnessing him fall in love with an alien, Sez expresses his hatred for Ryo and the aliens to Jay Springwell and devises a new plan to merge alien cells with humans so that they may excel as modified superhumans. He works with Genesis and Jay, eventually taking over it and becoming Ryo's rival.