Mahiro Oyama, a degenenerate slacker shut in who plays games and reads manga all day, sighs, as his sister, Mihari Oyama, a scientist, has ordered him to get out and 'touch some grass'. He slowly walks outside, though shyly as he hadn't left his house in 2 years. Eventually, he reaches the park and he takes a breather on the bench, before pulling a dirty manga out of his jacket.

"Thought you got me there, sis?" Mahiro says in a teasing tone, before reading the dirty manga with a smug face.