Cause there isn't any more conflict to settle. In fact, once they got him away from abusive mom and he was able to study, that really was a good end, too. But it showed that you don't just help--you should accept help. Friendship, like family, is give and take, give and take, no one just taking all the time or giving all the time.
So, they're grown, working, and they will be friends forever. And if little sister married him, family forever. :D
(Though I wish it didn't end. They're so nice.)
It's kinda open ended like make your ending type
Yep. I decided Kenji marries the sister and live happy as a family with them all. :D
Why did it end???? (╯°Д °)╯╧╧