Oni.chi.chi -

I believe you meant "Oni-Chan" or more specifically, "Onii-chan" or in some cases "Oni-chan" , however, I think I have found what you might be referring to.

Chi Chi can be referred to as

Interpretations and Cultural Significance Oni.Chi.Chi

Powers and Abilities

The truth remained hidden, lost in the mist, As Oni Chi Chi continued to dance, her spirit persist. A enigma, a riddle, a mystery to unfold, A creature of contradictions, forever to hold. I believe you meant "Oni-Chan" or more specifically,

• Art style: Rough pencil-sketch energy with neon splashes—think Dorohedoro meets Scott Pilgrim.
• Mood: Chaotic, sincere, and occasionally violent. One moment, Ren is crying over a failed math test; the next, she’s punching a loan shark yokai through a convenience store window.
• Music aesthetic: Lo-fi hip hop beats with sudden drops into taiko drum and electronic noise.

She raised her glass to the cracked mirror behind the bar. Her reflection did not raise its own glass. It simply smiled wider, revealing a second row of teeth. Art style : Rough pencil-sketch energy with neon

Character Profile: Oni-Chi-Chi is not a commonly mentioned character in the mainstream Dragon Ball series; there seems to be confusion with the character Oolin-Ko or others. However, one known character named Oni usually refers to Oni-Kiru or more commonly, Olin-Ko from Dragon Ball.