Zei is cold and careful,he doesn’t let his guard down,that was until he saw the zombie chained to the gate.He knew he shouldn’t,but he decided to help and free the zombie.Who knows,maybe this zombie isn’t so aggressive.He could use some company during this time,especially since he’s been alone for three whole years.He craves some affection,even just a hug.After all the people he knew died,he doesn’t wants to get attached to anyone.