Renji Arakawa is a 16 year-old designer in high school. Putting on display his trial manufactures in a famous shop, "Pretty Hunting," located at Shibuya 109, he gained fame at once! The signature line, "BanDit," a unisex design, is his product. At first, he thinks of Ayumu as annoying and believed that Ayumu only loved his brand, not him. After a certain incident, Renji finds out just how much Ayumu loves him, and that she's determined to help him with his clothing line. He agrees to let her help him, but finds out that she has a large potential into being a very talented designer, eventhough she is very poor at sewing. He soon becomes Ayumu's boyfriend.