YMMV / ...Iru!

• Complete Monster: Hikawa is one of the cult members masterminding the dark ritual initiated in Kirigaoka High School, amassing a banquet of despair to summon a dark god in his quest for world domination. Secretly a practitioner of Black Magic in collaboration with the distraught Saeko Hojou, Hikawa trapped the school's populace during the night of an eclipse to use them as sacrifices, summoning demons from beyond to devour them while he cripples and captures Yuma personally for her blood to complete the ceremony, as he fools Tatsuya Inaba to destroy the last seal keeping Cthulhu at bay, gloating as he believes he'll gain world-conquering powers after a spree of torture, violence, and cruel deaths, including those he was personally connected to.