Watanabe Rika is the eldest member of the group and declared that she wanna be "kind older sister" when she first joined, however, members usually end up treating her like a younger member. She has many plushies with names such as Shiroko, Kuroko, Kiiko, Robaba, Karaage, etc. Among them, Aoko the whale shark is the most famous among fans. Rika was the first member to get solo photobook & magazine model contract. She has 2 magazine model contracts (exclusive one in "RAY" & regular one in "LARME"). Rika is known as the “ponkotsu queen” or “clumsy queen” and is widely known for failing 50 job interviews before joining the group. Although she is usually shy and can't speak much in front of a TV camera, she can talk a lot when talking about things she likes such as Disney and bread.

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