Acting
Yuumi Kasai
July 30 2003- Place of birth: Yamanashi, Japan
- Gender: Female
- Also known as: Kasai Yuumi, Yuumi, ゆうみ, Yuttii, ゆってぃー, Yuu-chan, ゆーちゃん, Kasai Yuumi (河西結心)
河西結心 (Kasai Yuumi) is Japanese pop singer under Hello! Project as a member of Tsubaki Factory.
