The husband's company went bankrupt, and his wife, Hotaru, started working part-time. The manager at her part-time job, Tsujimura, is kind, and Hotaru quickly gets used to it. However, Tsujimura, who was abandoned by his wife due to his above-average giant penis, learns that she is sexually frustrated and forcefully pursues her. Each time her body is penetrated by the giant penis, Hotaru loses herself in unfamiliar pleasure and unknowingly greedily accepts it deep inside her vagina. The stimulation that makes one forget everything implants Tsujimura's giant penis deep within Hotaru...
