The main character, was told how to summon a succubus by a random NET. As a virgin who wanted to have sex so bad, he can’t help but feel excited. But the ritual takes a lot of effort to succeed. The mc has to endure his exploding libido for 72 days. He managed to endure it, and thus the day the he lose the virginity has come!. He made a summoning circle and begin the chant to summon the lustful demon. He succeeded the ritual, however, the demon he just summoned is….none other than his mom. The mom tried to convince the mc, but no matter she try, she just looked like his mom. A succubus has to finish their calling no matter who their summoner is. The fun begins….