Komoru Panda, a hikikomori story

Komoru is living a happy life. He goes to work every day, he likes his job, and he spends his time watching TV. Everything is fine, until one day he starts feeling uneasy about being around people. This feeling will quickly grow to the point where his perception of the world and people will change entirely. Soon he decides to self-isolate entirely. He becomes a hikikomori, a person who chooses to withdraw completely from society.