As the lightning struck, it brought an unscrupulous, 14-year-old boy, A-Chi into a strange world—Mobius Illusion. In the peculiar world, the time remained in 1986. In this fantasy world, there was a handsome boy named Ye Hang living alone. He claimed that he was murdered in 1986 and lived in the strange world thereafter. Ye Hang realized that A-Chi could see his memories years ago, so he threatened A-Chi to help him find the murderer as a condition to help him escape from this fantasy world. In the meantime, a girl named Nora also came into the scene. She lost all her memories except her own name. A-Chi felt a sense of intimacy to that girl. As there was no way out, A-Chi was forced to accept the deal.
In the closed place, Ye Hang’s memories slowly unfolded like a series of pictures. A-Chi was able to see the other side of Ye Hang and could feel how he felt. His attitude towards Ye Hang eventually changed. A-Chi wanted to help Ye Hang but he also wanted to free himself and Nora to return to the real world. He also missed his childhood sweetheart and he wanted to confess his love to her.
In a series of turns where realities and illusions entangled, A-Chi was pushed to the crossroads…