A Twin-Tailed Feline not very much is known about Koko's past but her race is known to be noble and Godly yet Koko has shown no power or special abilities other than using her tails power to store her many weapons she has bought and collected, she is very resilient as many works as a Bounty Hunter has lead her in getting captured by the most dangerous outlaws, tortured and molested by them only to get lucky finding an escape and killing her targets, Koko is very seductive and will use her sexual charms to get her way, she has managed to use it on both man and women targets, when it doesn't work she makes up with her deadly combat skills and high-tech weapons, Koko is mostly a solo Huntress but will sometimes work with other only to betray them later to get her own way as they are a means to an end, Koko loves adventure and money so she will do whatever she can to get it

On 1 of the hunts Koko is nearly killed by a dangerous bounty but is saved by Asani who later becomes her friend, although Asani sees her as an adventure buddy, Koko only sees her as a tool using her naivete to her advantage, but overtime starts getting close to her and actually starts caring for her seeing her as a little sister, Koko also starts getting soft and actually tries to bring some of her bounties alive as she will always bring them in dead, she tries getting Asani to use seduction as a way to get her bounty but although she is attractive Asani is very childlike and clueless when it comes to sex, Koko is considered very special to Asani even when they were both captured and tortured separately with Koko managing to escape but leaves Asani behind, Koko felt guilty and decided to hint Master Surya anonymously what was happening to Asani before leaving, Asani has forgiven and feels they should still be friends which makes Koko more guilty and more caring towards Asani

Although Stikz was a tyrant and nearly killed everyone on Kuldrin, after his defeat and imprisonment before breaking out when the others escaped, Koko let him hide and stay in her Spaceship where he sleeps, Koko is still friends with Asani but seeks a higher game and with Stikz Currosione by her side she can take on SSS-Class Jobs, he eventually does help her in some jobs and even sleeps with her, while they do develop feelings for each other they never say it and only say they are just gonna have sex there and now, after the Glayser incident Koko does provide a ship for Stikz and Asani to go to the Black Hole so to protect the Galaxy, after that Koko started going back to her old ways but missed Asani and even Stikz, while she doesn't admit it she was really happy to see the 2 comeback alive after a really longtime

20 years later after the Arachne Sisters attack, most of the gang has retired but Koko keeps hunting as she will always seek adventure, when Komori attacks Kuldrin, many of the gang are killed including Koko who dies protecting Asani making up for leaving her behind, after her defeat Asani goes to find the Baby Dragon Balls of Kuldrin to wish for her friends to comeback to life, but Baby Shenron can't bring Koko as she has already been revived but cannot comeback to Kuldrin as her race each have 9 lives and when 1 is taken they are revived in their home world, Koko's family has made sure she can't leave again, determined to bring her back home to Kuldrin Asani goes to the Celestial World to fight for Koko

Koko: Ready for some adventure Asani

Asani: Yeah course I am, I can't wait 

Koko: Hmhm, steady on, lets go paint the town red shall we

Asani: Umm isn't that gory?

Koko: No Asani it...nevermind lets just go kick some ass

Asani: Yaaay!

Koko: Hmhm [So childish, but I kinda like her for that]