Riko, a perfectly normal office worker, is tired of her daily work. Then, she suddenly picked up an illustrated book of demons and fairies that she loved when she was young. (I also want a summoned beast to take care of me... I also want a handsome man who is a feast for the eyes...) The moment I thought that the illustrated book glowed and a handsome lewd demon appeared...? Shia, the incubus she accidentally summoned. Shia, an incubus summoned by accident, asks Riko to have sex with him and receive his sperm. However, before they get down to business, Shia hears the sound of Riko's stoma grumbling and goes to the kitchen, saying, "First, we have to make you healthy." He takes care of Riko with delicious food and a warm bath. Shia takes care of everything for Riko. (But... Is it okay if he keeps giving it to me like this?) (If I have sex with Shia, maybe he will leave...) (Nevertheless, I also want to give something to Shia――) Having made up her mind, Riko accepts Shia――……. She melts at the touch of saliva with an aphrodisiac effect, and she is taught to come with her nipples... She is tortured to the depths and can't stop climaxing... "Come on, beg me for it..." A doting incubus who fucks you while making you cum... This is the story of a girl who becomes bonded to a caring incubus.