Futaro Uesugi has started his well-paying job as tutor to the five sisters, but trouble has already raised its ugly head! After finding out that Miku loves the Showa era, things have been going quite well with her studies, but Nino continues to catch him off-guard, taking everything two steps back. Can Futaro manage to get back on her good side? What about summer fun? Will they ever sit down and study?! Find out what happens next in Volume 2!