[The ending is be Austrian]
Sharp made an ear friend on the music listening software, and he likes to share what is happening around him.
Post it in the listening app's news feed, and the ear friend will comment on each one.
But Sharp never knew that the ear friend who had never been masked before was Rin who was by his side every day.
After repeating his studies for a year, Sharp was admitted to the same high school as Rin. Sharp would share his campus life with Rin (Note: Rin here is what Pu thought of as Ear Friend 02) every week when he went home during the holidays. Kepu didn't know that Rin was in that high school!
Time passed by, Pu was in the third year of high school, and Rin was also in the third year of high school. Rin repeated her studies and was in the same class as Pu. Rin has always been good at studying, and she ranked first in the next grade. No one knows the reason why she failed in the exam, except Sharp. She is the only one who knows.
Concept: fictional