UMM. Some of us aren't confused so your vague question needs to be expanded because we don't understand what you don't get. Sorry!
Mic lost his memories when he tried to kill himself. He's been having flashbacks of memories about Rikako and her daughter whose name is actually Mic (the bag he carries and the name tag belonged to the little girl). He became friends w/ the mom and watched her daughter..he believes he killed the daughter but he doesn't have all his memories so he doesn't know what exactly happened yet.
Aah....! Now I understand. Thanks!
I don't get the story.... mind to explain?