Yuumi Kasai
- Born
- 30 July 2003 (23 years)
- Place of birth
- Yamanashi, Japan
- Gender
- Female
河西結心 (Kasai Yuumi) is Japanese pop singer under Hello! Project as a member of Tsubaki Factory.
河西結心 (Kasai Yuumi) is Japanese pop singer under Hello! Project as a member of Tsubaki Factory.
