It has been more than a year since the fight on that island and the last time Chris saw Zero. In fact, Chris had come to somewhat enjoy his life while travelling with Leo. Although he had just been helping the latter and going along with him with no real purpose of his own, there was also no pressure from the latter unlike it used to be from the person who was now standing in front of him, Zero.
In recent months, Chris also enjoyed using his powers to help others. In each Shelter, or new location they went to, or came across, there was always someone in need, and Chris was able to help them on a personal level using his strength and the reaction on their face when he had helped them never failed to warm his heart.
It was much better than the days when he had to order around a bunch of subordinates to handle everything and only stepped on the field when they needed his strength. However, in the past year, he never forgot about Zero.