In the Wild, the Sound of the Piano Is Ringing

I really tried my best to write. The writing is not good, please don't criticize me. Plain, slow paced. No female protagonist, single male protagonist, no romance, no harem. Try to keep the word count as low as possible. Another note: If I can't stand the book, everyone should stop reading it. I also want to be embarrassed. If I couldn't delete it, I would have deleted it long ago.