Wakana Gojou is a fifteen year old high-school boy who was socially traumatized in the past due to his passion for dolls and doll-making. That incident left a mark on him that made him into a social recluse. But one day he was caught talking to his doll by Kitagawa Marin, a sociable gyaru who is perfectly open about her otaku interests—in short, the complete opposite of him. Instead of making fun of him, she's amazed by his skill on the sewing machine, and asks if he'll help her make a cosplay! Through sharing their passions, they end up in an odd but supportive relationship.