Rio is a high school student who is Ichika's best friend and is in the same class as her. She is a member of the tennis club and is also Ryou's younger sister.

One rainy day, salaryman Amakusa Ryou is saved by a high school girl he doesn't know at the station. He later finds out that the girl is Arima Ichika. Ryou is somewhat of a womanizer and to repay her for saving him, he suggests giving her a kiss or going out on a date with her, in which Ichika tells him he's creepy. This, however, opens a new door for Ryou and he falls madly in love with her. Ever since then, Ryou tries to overly express his feelings to Ichika. Ichika just keeps insulting him and says he's being creepy, but he just seems to take it as her way of showing affection towards him... (Source: Crunchyroll) 
Note: The show streamed in advance on Amazon Prime Video on March 29, 2021. Regular broadcast started on April 5, 2021.

**Height:** 161cm

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Rena Hasegawa started her career as a member of idol group NGT48. She graduated from the group in 2019 to pursue voice acting.

Once you fall for someone, you can't stop the love. A strange encounter spurs the meeting of Amakusa Ryou, a high spec businessman who's loose with women, and his high school sister's best friend, Arima Ichika. From there, he falls madly in love. On the one hand, he approaches her with almost too straight-forward methods, while she responds simply disgusted, insulting him without hesitation...and he takes it as her way of showing love. This is a romantic comedy about a twisted elite employee and a normal otaku high school girl.
 
Note: Chapter count includes 7 extras.

Rio Amakusa