Yua Nanami is a new office lady who is overworked by her spiteful superior. One day, she accidentally discovers her superior's weakness. In order to release all the frustration she has felt, she takes revenge in a nasty way. She holds her boss's weakness in hand and secretly bullies his penis in the office. To top it off, she sets up a sneaky trap to make an example of him, and even makes him masturbate in front of the female manager...!!