Tsuchigomori

Tsuchigomori serves as a science teacher at Kamome Academy while concealing his true nature as a spider-type supernatural entity who governs the Fifth Mystery, 'The 4 PM Bookstacks.' This enigmatic archive houses volumes that document the past and destined futures of every student on campus. Once the mentor of Hanako during his living years, Tsuchigomori maintains a gruff exterior and insists he has no fondness for children — yet he consistently acts as a quiet guardian and guiding force for those in his care.