(OC x BNHA) A masked girl with an unknown quirk applies for U.A. She is accepted with flying colors, but finds her new classmates repulsive and drops out. Six years later, she finally finds the ideal class and joins. She is known as MERCY, and even pro heroes fear her unsettling presence... Her goal is to mold the class she joined into heroes who do not do their job for fame or fortune, but to save people...