A biology teacher at Kotaro&#039;s high school, she is affectionately referred to as Tomo-chan, much to her disliking. Her favorite hobby is the study of the supernatural, which tends to get her classes off subject. She also enjoys making a hard time for Kotaro and his friend Takeshi. Short of stature and usually dressed in a white lab coat, thick glasses, and a messy hairstyle, she appears unattractive on the outside. But with a little makeup she can be a real beauty. Because of her knowledge of paranormal phenomena, Kotaro goes to her as a source of advice on time travel. 

Makimura Koutarou has made up his mind: during the summer vacation, he is going to confess his love to the seemingly unapproachable Serizawa Kaho. Yet, on the night before, he has a run-in with a strange girl - an encounter which propels him into the future. There, he learns that not only has Kaho-chan become his girlfriend, but she has also died in a tragic accident. Returning to his own time, Koutarou sets out to change the future and save his love.
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(Source: Anime News Network)

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Mother of voice actress [Honoka Inoue](https://anilist.co/staff/129363/Honoka-Inoue). She has held a long-running gag of being 'eternally 17 years old'.

Tomomi Yanagihara