Experiment 630 [Reuben x OC]

After many of adventures upon the islands of Kawaii. All six-hundred and twenty-five of Stitch's cousins, Jumba's illegal genetic experiments had been captured, turned from bad to good, and then found the one place they belong. Afterwards, the gang's exciting adventures had ended... even after defeating Dr. Hamsterveil and Leroy, their Ohana received an happy ending.
However, what if Jumba Jookiba had another experiment pod. One, that many years back Jumba himself never planned to create. Instead, he was requested to do so. Which he had mistakenly left behind, to finally be discovered years later by Captain Gantu of the Armada.
A new mission begins! To turn a new experiment from bad to good and most of all, find the one place they truly belong...
Except this time, Stitch's new cousin refuses their help. Also, the gang notices just how different Experiment 630 is unlike all of Stitch's other cousins. Until the secrets of the past that has been long desired to be forgotten become to rise when the reason this cousin is called Experiment 630 is revealed...