俺の幼馴染がエロ配信をしていた件 ～地味な彼女の裏の顔はエロエロな配信者でした～

In a word, normal.
The main character, Taichi, who leads such a peaceful school life, has one thing to look forward to that adds color to his daily life.

It is the live streaming of a certain streamer.
Taichi looks forward to her cheerful, joyful, and slightly naughty live-streaming of video games.

Then one day. One day, while he was watching her live streaming as usual, he felt a small sense of discomfort.