Ascendance of a Bookworm: I'll do anything to become a librarian

Dirk suddenly develops a high fever. Delia, who adored Dirk, and started to see him as her own family, was worried sick. Main sees his symptoms and realizes that he may have the Devouring. After talking to Ferdinand, they decide to raise him without letting others know that he has the Devouring. Meanwhile, Main continues her colored-ink experiments with Heidi as she helped out with taking care of Dirk at the cathedral, but...