The Invisible Castle 3

BASED ON THE NOVEL OF THE SAME NAME
Of the seven teenagers gathered in the mysterious castle, all of them—except for Lyon—attended the same school, Yukishina Municipal Junior High School Number Five. After spending the Christmas party in good spirits, Masamune suggests that everyone go to school for just one day. On January 10th, Kokoro prepares to go to school after eight months of absence, but...