Sweet Pool -

Yoji is a little bit nervous because he goes to school for the first time in several months. From that day, his surroundings gradually change.... Tetsuo unexpectedly approaches Yoji. Yoji asks Tetsuo why, but he never answers.... Yoji gets scared of Tetsuo. Zenya also approaches Yoji at the same time. One day, Zenya suddenly whispers Yoji, "It's all your fault...." Strange pain.... Vivid nightmare.... Are they just illusions? What are Tetsuo and Zenya's purpose?