Welcome to Happiness!

Welcome to the N-H-K – Season 1

The call Tatsuhiro received was from the class representative from High School, Megumi who he ends up meeting with. He admits to her that he is a hikikomori, so she invites him to her successful senpai who can supposedly cure him of his NEET problems. However once arriving to a weird seminar Tatsuhiro has noticed that he has wondered into a Pyramid Scheme.