Frog hunting

When we join the Survey Corps, we are all agreeing that there's a high chance of not coming back to the Walls; Miche has always known that and that's why, when he recognized her amongst the new recruits many years ago, he got mad. Who would have looked after her if something happened to him?
But seeing her with her friends now, he knows that, even after he will be gone, she will always have a family.