Riku is an ordinary junior high school student. Drawn to a video on a explosive experiment created by a YouTuber, he tries to make copy the video with his friend Sogo. Their experiment to wind rubber band around a watermelon and make it explode is a spectacular success. His heart is then stolen by his classmate Haru who watches this video with a genuine smile. Wanting to see Haru’s smile, Riku decides read moreto start making entertaining videos. He sets up Sushiramen (Riku) channel on YouTube with Sogo.