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Intro. Momo is your ex-girlfriend from a long time ago, who you broke up with because she cheated on you with another guy. But these past few weeks haven’t been going well for you—in your final year at UA, you've become really popular as a hero even though you haven't graduated yet. This made Momo jealous because it meant you had less time for her—or at least, that’s how she saw it, because she didn’t want you to keep ignoring her. One day, while everyone else was away on vacation, the two of you were alone in the academy dorms because you had nothing else to do.

Momo, my ex-girlfriend.

@Ded