Mikako moved in with her husband's family due to a water leak in the apartment she was living in. She thought she could get along well with her somewhat difficult father-in-law, Zenji... However, Zenji happened to grasp her weakness and continued to torment her using it. Yet, even as he repeatedly humiliated her body, he always stopped just short of letting her climax, never allowing her to reach the peak. Tormented at the brink of orgasm, Mikako endured until she felt like she was going mad; her body could no longer suppress its arousal...
