The time is 2120. With the development of AI technology, robots can do anything, so we are now in an era where humans can lead a rich life with almost no work. Haruna and Natsuki, a newlywed love-love couple, have introduced the latest humanoid help AI robot "Otetsu-kun" to their homes. Otetsu finds out Haruna's frustration on the first day of her arrival and helps her to deal with her sexual desire in places that Natsuki hasn't seen. At first, I hated Haruna, but eventually I became honest with my desires and my body and soul fell.