Blue Exorcist (Manga) Vol. 21

Demon/s Exorcism Devil/s Special Ability/ies Twin/s Dead Family Member/s Secret Identity Adapted to Anime Swordsman Demon World Special Weapon/s Brother/s Gun/s Priest/s Family Feud Human-Nonhuman Relationship Spirit/s Ambitious Goal/s Romantic Subplot Friendship Strong Male Lead Family Teacher/s Big Breasts Half-Human Dysfunctional Family/ies Hidden Power/s Adapted to Game Academy Adopted Protagonist Ambitious Male Lead Older Brother Younger Brother Absent Parent/s Adopted Child/ren Boarding School Brother Complex Dead Parent/s Death of Loved One/s Exorcist/s Satan Cat/s Sibling Relationship Ambitious Protagonist Animal/s Elemental Manipulation Ghost/s Gunfighter/s Important Non-Romantic Relationship/s Secret World Bad Experiences Demon Hunter/s Determined Protagonist Familiar/s Inhuman Power Kind Male Lead Knight/s Opposites Become Friends Plant/s Private School Teamwork Allies Become Enemies Bad Reputation Emotionally Confused Family Business Father-Son Relationship Glasses-Wearing Protagonist Magic Magic Item/s Magical Creature/s Optimistic Protagonist Parallel World/s Past Plays a Big Role Secret Ability Secret Organization/s Seeing Things Other Humans Can't Sibling/s Teammates Relationship Cram School Familial Love Father and Son Fire Flashback/s Genius/es Guilt Immature Protagonist Monk/s Mysterious Character/s Optimist/s Protagonist Strong from the Start School Chairman Student/s Summoned Creatures Transformation/s Adapted to Movie Betrayal Childhood Friend/s Childhood Promise Doctor/s Emotionally Strong Male Lead Mysterious Benefactor/s