Maina, who works at a securities company, lives with her sickly younger brother. After being blamed for losses in a trade by her landlord, who is wheelchair-bound, she is told that the rent will be increased. Wanting to take care of him, she offers to help, but ends up being asked to wipe his body sweat with a towel, and even his genitals. "You said you'd do anything! This is part of the job too!" Unable to resist these words, she is made to perform handjobs, paizuri, fellatio, and finally bareback sex... Initially reluctant, Maina gradually comes to experience pleasure from the commanded acts, ultimately falling into obedience as a sex slave.
