Returning from the first game, Akari is no longer the main antagonist but a reluctant ally. In Shinseki Noko to Otomari Dakara 2 , she arrives to "warn" the protagonist about the incoming pair. However, her warning comes with a price: she also plans to stay overnight.
While specific plot summaries for the second volume are often restricted to Japanese publication databases, it generally expands on the initial premise established in the first volume: shinseki noko to otomari dakara 2