Akane accepts Yukiko's invite to her middle school cultural festival, unaware that a yukata date with Taiyou awaits! And as the school field day approaches, nothing can dampen Taiyou's excitement, or so you would think...

Umi, Taiyou, and Daichi decide to go to Akane's house to see her cat. Akane can't hide her excitement as she gets ready at home, as she's never had friends come visit before. But unforeseen trouble is just around the corner...

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?!