I write down my findings here: She is very mysterious about that key person. She was born on the martyrdom day of Valentine for Christianity. Her surname is Toyokawa Inari, one of the three major Inari gods of Shintoism. Her name Saki comes from Sakyamuni. The band's totem is the Islamic crescent moon - what if, I mean what if, there really are gods in this world? A god who charms all living beings and brings chaos to the world. She can change her appearance and cognition, so she can perfectly hide her identity by wearing a mask. He has the ability to corrode people's hearts. Everyone who has seen him can fall in love with him. The purpose of his existence is to bring chaos - 3 bands were disbanded because of him. Why did he do everything? I think it must have a deeper meaning...