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Ueno Riko 上野りこ Prefecture Ueno Riko (上野りこ) is a member of BANZAI JAPAN and a former founding member of Happy Smile ♡ Cinderella, as Yuuki Rina (優木りな). She was a member of Happy Smile ♡ Cinderella from their creation in June 2020 until they split up on May 31, 2021. She joined BANZAI JAPAN on July 22, 2022, as part of ASHIGARU JAPAN and was promoted to a full member on October 10, 2022. Profile Kanji 上(うえ)野(の)りこ Nicknames Riko-nyan (りこにゃん) Former names Yuuki Rina (優木りな) Born February 21, 2001 (age 23) Birth Place Saitama, Japan Blood Type A Zodiac Sign  Pisces Height 155 cm (5 ft 1 in) Professional Information Genre J-Pop Occupation Idol Years Active 2020-Present Agency Cospanic Entertainement (2022-present) Group BANZAI JAPAN Former Group Happy Smile ♡ Cinderella Generation 10th Member Color Yellow (Happy Smile ♡ Cinderella) Blue (BANZAI JAPAN) Join Date Founding Member Happy Smile ♡ Cinderella July 22, 2022 (BANZAI JAPAN) Graduated May 31, 2021 Happy Smile ♡ Cinderella Ueno Riko 上野りこ 唯一、海がない埼玉県ですが県内を流れる川の数は日本一多いんです！止まらない川の水から流れてくる沢山のチャンスときらめきをすくっていくよ！ Hotel Booking Prefecture Details [rafflepress id=”1″]