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Surname Ruicha (Ruicha ) , around the globe, is an extremely rare last name. Much more frequently, Ruicha is the forename as well as the last name.
瑞夏, 瑞差, 瑞查, 瑞槎, 瑞茶, 睿夏, and 蕊茶
Devi, Liang, Mishra, and Agrawal