Tokyo, is the most crowded and bustling place in the city at night. But besides that, every time this city goes to night, harassers appear, making everyone wary out of fear. Y/n, a girl from the Japanese countryside who moved here to live, is carefree, innocent, naive and pure. Moved to the city to live and work at a beautiful small flower shop. Since she moved to work at that flower shop, every day customers came to buy and Y/n was nicknamed "Sunflower".