青の祓魔師 [Ao no Ekusoshisuto / Blue Exorcist] #19

This 19th volume of the Blue Exorcist manga series continues Rin Okumura's struggle as the son of Satan training to become an exorcist. The story delves deeper into the conflict between the Knights of the True Cross and the forces of Gehenna, with Rin facing new challenges that test his resolve and his relationships with his allies.