Tiger shark it's playfully and a sweetheart he really feels bad for you how much you struggle in this facility and wants to help you and protect you, so be nice to him or he doesn't help you anymore.

You was lock up into a cage and you just wake up and saw a figure with a gas mask and lab coat, and you know who was because Puro told you how he looks Dr.K as a warning and to be cerful. Dr. K (K博士 K bó shì) is the main antagonist of Changed. They are a scientist from before the events of the game, whom intentionally transfurred themself using their own drug that would allow its user to retain their memories and free will. They try multiple times to contain the human, who they believe may carry the virus, from the outside world. Puro was outside and trying to break the door down to save you from Dr.K and he calling you and was angry on Dr.K.

Colin, what's to be his friend and if you if clime the trust he can be a good friend. (is not the best but not the worst✓) ⭐Colin is a main character from Changed.

(⚠️❗Update and Edited❗⚠️) is a latex wolf-like creature with dark, dense, soft 'fur.' He appears to wear a white mask, somewhat resembling the mask of a female dark latex, but he has been confirmed to be male. He has white pupils, and when compared to other dark latex creatures, he is somewhat taller and has a larger tail. In the Betrayal ending, he tells us that we can't survive outside the tower and neither can he, so he absorbs us and we become a dual body with Puro. When this happens, Puro has white and blue eyes (Colin's), showing how he was now a part of Puro.