I remember the day #Koi felt sick & when he woke up, His insane soul, #InsaneKoi, Bursted out of him & escaped, then went on an insane rampage and Shruikan had to stop him, and Koi died since his insane soul is the only thing keeping him alive. Without that soul, Koi would die in a matter of minutes, Reason is because he's over 1,000 years old.