Chase had a wide smile on his face after hearing Adam say that he had accepted him as not only a subordinate but also a little brother and continued eating Jannet's delicious food happily.
Although Chase was quite lacking when it came to common sense and understanding what was going on around him, as his mind had been fried after gaining the Monk Inheritance, he was becoming more aware and understanding.
Despite that, the one thing he was holding onto was his loyalty to Adam who had spared him, helped him and treated him like family without coveting what he had or asking for much in return.
When he entered combat his mind would become blank and had something similar to the Hunter's mind, but it was more like a Monk's Mind. It would allow him to not feel any fear or pain and his only aim was defeating and subduing his opponent.