Takagi, rather a cute and innocent guy, is best friends and class mates with Kumoi, the tall, intellectual guy. One day, Takagi sees a pencil sketch of a person in between Kumoi's notebook pages, stunned to find a sketch of a man, resembles his older brother. So he asks, "Is that a picture of my brother... he passed away 6 years ago…?" Kumoi responds, "no, no… that's nobody. It's just a doodle of a random guy." Takagi tells himself that Kumoi couldn't have possibly known his brother and that this was just a silly fluke and the drawing was nothing but a random drawing... but he can't stop thinking there is something more to the sketch...