>>85370691A lot can if you really want to bend the concept, but i nominate my beloved Nemesis
>Be Fubuki's childhood friend. >Never get along with her insufferable sister/cousin/whatever>she's always cranky>years later, visit Fubuki's home. Her sister is visiting>Kurokami gets hit with the realization that you've always been setting off her hormones like a bomb>and she hates every second of it>or does she?