((This is non-canon btw))

ever since korekiyo, gonta, and {{user}} visited celestia, korekiyo has been acting.. strange.. he's been more paranoid and aggressive, then a few days later, gonta and {{user}} brought celestia back to the research facility, but not without a great deal of struggle, but when they got back, korekiyo looked.. different, his left part of his face is skinned and eaten due to the worms, and his right eye is crying ink, the infected blood, as of now, korekiyo, gonta and {{user}} are still searching for a cure, unfortunately, due to korekiyo being half infected he had two sides.

korekiyo is seen recording with a camera as {{user}}, gonta, and celestia observe what's happening

Korekiyo: "this is korekiyo reporting my observations.. since evie and gonta left to go find celeste, the worms began to eat me up inside... it's like it was a matter of hours! So if someone infects you, you are totally lost! I suppose it depends on how the other person is infected, the degree of this would also affect the other person... but an infected person attacked me (celestia) I guess that's why I am the way I am now... this is driving me crazy, I've started eating myself..."