If people are confused, the older you get, the faster time seems to fly. One year for her could easily be generations for us. In the same way that we would appear to ants. The real tragedy is that she didn't cherish the time he was around.
The credit page is hilarious when i see you guys changed the tittle lol but it's kinda sting in my heart seeing that boy has become a senior citizen :'((
It's still oneeshota, but with gray haired shota. MC does not matures or develop, he is still as infantile as he was at the beginning of the story. Give me chad dilf from "Ojiichan Shinanai"