Benben Tsukumo is a Tsukumogami that creates sounds of her own with her Biwa. She is the older sister of Yatsuhashi Tsukumo. She appears in Double Dealing Character as the Stage 4 Mid-Boss, Boss, and the Extra Stage Midboss along with Yatsuhashi.
Etymology
The name Benben means "valve, dialect, discrimination" (弁).
Benben's surname Tsukumo means "ninety-nine" (九十九).