Yuji Fujiwara had an unlucky life.
When he was a junior high school student, he was blamed for a vase of flowers that he had not broken, and he was fired from his job for a mistake made by a co-worker.
At the convenience store where he worked part-time, Takamiya, a younger girl, blamed him for mistakes made by others.
When he returns home in a depressed mood, he is greeted by a strange girl.
When Yugi is puzzled, the girl reveals her true identity.
It turns out to be a mucus organism that has been living with him for the past three months.
The creature, which speaks human language and can change its appearance, is in love with Eugene.
Eugene is not at all pleased with the mucus life form’s affection.
In order to attract Eugene’s attention, the mucus life form changes its appearance into Takamiya, a colleague at his part-time job, and seduces him.
Included “Episode 1” from the original story “Mucus Living Together