A freshman at Kotaro&#039;s school and a rising star on the diving team, Mana has an air around her that makes her difficult to approach. She never laughs and never socializes with anyone but her coach. When Kotaro gets to know her, he finds that she&#039;s actually a bit of a romantic. She has a deep love of the water and enjoys fairy tales about mermaids. When Kotaro finds out that she is somehow tied to Kaho&#039;s accident, he begins an uphill struggle to break through her antisocial barrier and become her friend. 

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)

Rikako Aikawa is a voice actress. She was formerly married to voice actor [Mitsuo Iwata](https://anilist.co/staff/95399/Mitsuo-Iwata).

On March 28, 2025, she and Mitsuo Iwata announced their divorce via a [joint announcement](https://x.com/mitsuo_iwata_77/status/1905817258972295680) on Iwata's Twitter account.

**Non anime roles:**
- Berry - Kamen Rider J (Movie) and Kamen Rider World (Movie)

Mana Kawamura