
Quick answer — Chiemi Tanaka voices Ririko Oribe in Sakura Quest, Rina Tennouji in Love Live! Nijigasaki High School Idol Club, Rikka in The Little Lies We All Tell and 4 more characters.
Chiemi Tanaka voices Ririko Oribe (Sakura Quest), Rina Tennouji (Love Live! Nijigasaki High School Idol Club), Rikka (The Little Lies We All Tell), Yuzu Tachibana (Kaya-chan Isn't Scary), Sasame Tsuji (Three Leaves, Three Colors), Kana Oota (Quality Assurance in Another World), Meijin (The strongest job is apparently not a hero or a sage, but an appraiser (provisional)!).
Ririko Oribe is voiced in Japanese by Chiemi Tanaka.