Artist's commentary
Mismatched Words and Actions
Bro: Darnit, I lost again.
Sis: Hehe~ That's 10 losses so it's time for your penalty game ♪ Let's see... yeah, I want you to say that again.
Bro: That? You wouldn't! ... you little monster.
Sis: Just say it!
Bro: ... I l-love my... my little sister!
Sis: Eeeew, gross♪
Bro: Grr... (If you're going to respond like that don't look so happy doing it!)
This is what I imagined happening after episode 5. Anyway, what kind of decision is that to help persuade a middle school girl by making her read a pornographic doujinshi. One false move and it'll be "Male high school student makes middle school girl read obscene doujinshi in order draw her closer to him" and "The young man gave incomprehensible testimony about repairing the relationship between his sister and another young girl" and other such reports, all due to his recklessness.