I have this character in my mind and he kind of came out of no where. But when I added him into my story, he suddenly felt like a godsent. I have so many exciting ideas for him. But he gets introduced at such a crucial and fast-paced time that no one else really gets to know him and understand him quite like I do. In other words, I need to make this character stand out in about a chapter. I need to give him a reason for the other characters to want him to stick around and I have no idea how to do this. Any advice on how to go about this?