Jijou wo Shiranai Tenkousei ga Guigui Kuru.

Akane and Sumire seem to have gotten closer, and Taiyou can't help but feel a little jealous. Akane, Taiyou, and Hino go on a trip to the zoo. And Christmas is just around the corner, which means festivities and romantic dates!

It's Christmas Eve, and the party at Taiyou's house is about to begin. But even with tasty food and presents waiting, Akane and Taiyou can't even look each other in the eye! Is there anyone or anything that can clear up this awkward mood?!

Retrieve the ticking time bomb planted in classroom 5-1 at once! Taiyou finds himself suddenly entrusted with this top secret mission. The fate of his classmates is in Taiyou's hands! The bomb's location is... inside Akane's locker?!