Appel is a hardworking student attending an elite private high school on a scholarship. His new life takes an unexpected turn when he encounters the mysterious pink-haired twins Glista and Glyde, who develop an intense and unsettling interest in him. Despite their gentle and bright demeanor, the twins slowly begin to encroach upon Appels daily existence, gradually invading his life. As his once quiet and orderly routine begins to rot from within, Appel finds himself questioning whether he can uncover the twins true nature before his peaceful days are completely consumed. The story unfolds in a school setting where the line between interest and madness proves razor thin, with a worm already lurking at the core of the apple.