Ruri, a college student working part time at a convenience story, finds herself drawn to Nosegawa, a middle-aged customer who comes in every day to buy two packs of cigarettes. When she works up the nerve to ask him for a ride home one rainy day, their interaction in the car kindles something in Ruri's heart - a strange and unknown new heat...

"Ryouichi did anything I told him to."

Cousins and childhood friends, Issei and Ryouichi. Between bossy heir of a company president Issei and gloomy, always obedient Ryouichi arose a warped master-slave relationship. Letting the adored Issei conquer him, young Ryouichi gave his body over to pleasure. However, a few years later, with these two working at the same company, has the relationship between these two started to change?

Manga anthology based on DMM and Nitro+'s browser game Touken Ranbu -online-