Donten Viviko

 (曇天びびこ) is a Japanese idol and former founding member of Ω Boku Tachi Mata Nanika Yaccha Imashita? Ω.

On March 31st, 2022, it was announced that she graduated from Ω Boku Tachi Mata Nanika Yaccha Imashita? Ω after a two-month long hiatus from the group.