For a second, 1.2 to be precise, I thought this mango was going to show us a wise protagonist that will have use his head to get out of any situation that happens by being with that girl. And after a while, he would die protecting her. Like a surrogate father, knowing she will be alright because she became someone able to take care of herself. Heck even that child hero(who obviously looks up to the old man and was really hurt seeing him in that state) could be the one to help the girl escape while MC died using his most powerful skill to kill whatever threat.
Oh well...following.