A Sister's All You Need., Vol. 12 (light novel)

After giving up on becoming a protagonist, Itsuki continues to listlessly churn out novels like a machine. On the other hand, Nayuta has given up writing entirely in favor of shutting herself up in her room and playing video games. Though our main characters have stagnated, the world keeps turning and time marches relentlessly forward...and whether they’re aware of it or not, big things are in store for Ashley, Nadeshiko, and the Hashima family.