Since failing to enter university, Yamada's parents have passed away, he has lived in isolation in his apartment, not going out, not working, not interacting with others. Yamada has relied on social welfare like this for 30 years. The SakuraSaku Association, an organization established to help people with hikikomori like Yamada, has sent Suzu, a beautiful woman who is already married, to assist him. Even during her university years, Suzu actively participated in volunteer clubs, wanting to help those in difficulty. Upon entering Yamada's home, trash was everywhere, and the smell made Suzu wince. Nevertheless, she did not hate or feel disgusted by Yamada; she enthusiastically helped him clean up and organize everything. When she encountered a pile of crumpled papers, Suzu immediately recognized them as papers used to wipe up semen. Since the human need for sex is completely normal, Suzu was willing to assist Yamada in fulfilling his sexual needs...