Haruka Hasegawa is a postgraduate student. She wears a lab coat over revealing clothing. She is a violent, somewhat sadistic woman from a wealthy, over-protective family.

Her family arranged a marriage for her, against her will. However, she does not have to marry until she is finished with her studies at the university. This is the main reason why she decided to stay there until she receives her doctorate. Hasegawa is not very good at communicating with people, and her harsh personality is used to mask this handicap. She has known Itsuki since she was in middle school.

Enter Tadayasu, a freshman college student who can see and talk to cute, chibi bacteria and other microscopic organisms. It's not all fun and games like it sounds, though, because it gets him into all sorts of trouble. Join Tadayasu as he enters his first year at the Agriculture University, what crazy events await him?

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Her younger brother [Takashi Oohara](https://anilist.co/staff/96636/) is also a voice actor.

__Non-anime roles:__
- Harran - Goddess of Victory - Nikke (VG)
- Ningguang - Genshin Impact (VG)
- Mikasa - Azur Lane (VG)

In the second season the story continues exactly where it left off previously. Professor Itsuki's Fermentation Cellar and laboratory is ready for operation and with Sawaki Tadayasu's unique gift to see and communicate with microbes to help, Itsuki's motley group of students begin to process different fermented products like soy sauce and sake.
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(Source: Anime News Network)

Tadayasu Sawaki has a gift: he can see all kinds of microbes, from the ones that ferment sake to everyday bathroom mold. Not only that, but they're not scientifically accurate but instead cute chibi creatures. When he enters an agricultural university and a professor finds out about his gift, he begins to meet new people that help him discover more about his abilities and himself.