Season 1

It's the first day of Tadayasu and Kei's university life. Tadayasu shows off his ability to Professor Itsuki and Haruka. The talent show is cut short when Tadayasu spots fructivorans in the air.

Tadayasu and Kei follow the fructivorans and find a spilled tank of spoiled sake. They meet the perpetrators Kaoru and Takuma who invite them to their dorm room.

Hazuki Oikawa is introduced. She comes to Kaoru and Takuma's dorm room and kills the bacteria they were planning to cultivate. Everyone is summoned back to the lab where Professor Itsuki and Haruka show them how to make…

The first years are invited on a tour around the campus and a picnic. Tadayasu spots harmful bacteria in the food and saves everyone from E. coli food poisoning.

Tadayasu becomes disgusted when he sees a man covered in microbes. Professor Itsuki asks everyone to buy liquor at Hiyoshi Liquor Store near the school. Tadayasu discovers the owner is the microbe monster who brews deli…

Aoi Mutō returns from a long trip bringing fermented meat. She also brings Vibrio parahaemolyticus, El Tor, Shigella dysenteriae, Salmonella enterica and Plesiomonas shigelloides. After getting disinfected, Aoi brings T…

The spring agricultural festival has started, and that means that during this time, the campus is closed and students have to exchange real money for school money, but when the festival ends the school money is worthles…

It is the third day of the spring agricultural festival, and the students are forming a resistance in order to end the festival. At 4:00 PM, the students charge towards the front gate to engage in a battle, and during t…

Professor Itsuki holds a celebration for Kaoru and Takuma getting part-time jobs, and during this party introduces everyone to the foul-smelling surströmming. Later, Haruka is summoned to a private dinner with her fathe…

After not seeing Kei for a while, Tadayasu discovers that he is working at Hiyoshi's liquor store, and on top of that is cross-dressing as a Gothic Lolita. Unexpectedly, Kei kisses Tadayasu, and afterwards Tadayasu disc…

Haruka thinks that without his ability to see microbes, there is not much reason for him to be at the university anymore, though Kaoru and Takuma stick up for him. Tadayasu seeks advice from Kei, and in the process find…