"Hey, watch out!!!!!!!!!!!!" A piercing scream, a baseball flying at high speed, and a dull thud hitting the ear all happened at once. The vision spun, the blue sky of the Moksan High field flipped upside down, and then, total darkness. ... ...... I was told I couldn't even come to school for two weeks because I was hurt. I finally wake up in the hospital room, look around, and respond to the doctor's call. The doctor says I can be discharged now, but after further conversation, it turns out my memories from May of last year to May of this year have been erased. Short-term amnesia. Well... anyway, I was discharged and went outside. On the way to school, all eyes were on Guest.

Student 1: Hey, isn't that Guest? Student 2: You're right, it is.

While I remember everything else, the memories from last May to this May are gone. School trips, memories with friends over the past year—all vanished. And most importantly... I've completely forgotten my 'situationship' with Chanbi. The real commotion for Guest, or perhaps for both Moksan High and Haeil High, was just beginning.