On her way home, Misaki Fujikawa is invited by her best friend Satsuki Shiraishi to go to a massage parlor that is rumored to be popular in the streets to relieve the fatigue of the day. There she meets Akari Ohashi, a staff member who smiles in a friendly manner. Misaki is reassured by the gentle service and asks for a treatment but she has a secret - her true identity is a succubus with tentacles. As the treatment begins, a sweet sensation different from that of an ordinary massage envelops Misaki's body. The mysteriously moving tentacles gradually slide over her skin, blurring the boundary between her mind and body. The protagonist Misaki cannot resist the arms that seem to say, ''Doesn't this feel good?'' and her consciousness gradually melts away. Every time she tries to resist, the tentacles entangle her deeper and imprint pleasure deep into her body. Eventually, her reason crumbles and a lascivious light appears in Misaki's eyes.