On the heels of his inadvertent slip (which went right over Riko's head), Kai's spiraling into depression all over again. He's so befuddled with thoughts of Riko, he even fails one of his finals!

While he's preoccupied with makeup exams, his friends are still determined to make Kai and Riko a couple.

So when a study group is formed, guess who turns out to be Kai's tutor...Will this study session cover an extra subject-love?!