Two weeks out from graduation, Izuku is sick and tired-but Katsuki's about to realize that Izuku isn't his property when he goes a step too far on their class trip. Or, Izuku declares war after overhearing something he shouldn't have. Cue the war paint (red nail polish).

Magical Inheritance Law #151: Only the firstborn son may be named the Heir to a family inheritance, and subsequently be eligible to claim the title of Patriarch. -See Footnote #3 for protocol if the rightful Heir perishes before producing a son. Bill comes across a startling discovery at Gringotts, prompting him to inform Charlie of his withheld inheritance.