Fumihime Nekoma, a middle school student who hates his own childish, high-pitched voice. He was teased by those around him as "Soprano" and lacked confidence as a man. However, he has a "hidden face" that he can't tell anyone. That is, using his Kawaii Voice as a weapon, he is active as the rapidly growing VTuber "Nyarunyan Nekono Hime." Though Fumihime had complicated feelings about the voice he was supposed to hate being enthusiastically loved across the screen, one day, he discovers that his childhood friend Kagechika is a hardcore fan of Nyarunyan...!?