Yatogame-chan Kansatsu Nikki

With midterms coming up, Yatogame's grades are in trouble! So Jin agrees to help her study... and comes up with a method that makes use of her very biased knowledge! But after spending all night coming up with the idea, Jin faces trouble himself... Meanwhile, as the Chiba-born Teppei stresses over his upcoming exams, Jandara-senpai gives him a traditional Mikawa good-luck charm...