I watched the first two eps. and, since this is the third time I see a character doing something "unique", I can't help but post a mediocre comment. Please don't get mad at me. Here goes:
IMO, Kuro helped Keita out of fear (to die from starvation).
The other two times were:
My senseless point is the actions taken are virtuous but the character's reason(s) is(are) not.