Ichiji Matarou is a student who has long been self and always masturbate using "Onahole" or masturbation tool. Incidentally when the largest Onahole Company has release new product Onahoko or known to be the 4th generation Masturbation Dolls code type FLA 4545 Onee- san type Masturbation Dolls. With persistent Matarou work hard and raise money to buy the new product. After successfully getting it, when the process of changing the personality of the system suddenly the cable was uprooted and encountered an error. Type FLA 4545 was awakened and welcomed Ichiji Matarou. And the life of Ichiji Matarou with Masturbation Dolls has begins....

(Source: Nekopoi and Has Been Translated and Edited)