Because Grammas will said they had to live in their old apartment together for a year as a condition of inheriting. The only reason she will be allowed to live outside is due to threat to her life.
No prob. I often have to go back and re-read because I forgot what's going on by the time I get any updates. I think I have re read my ongoing manga 4x by now. Or maybe I just have too many that I'm following. ╮( ̄▽ ̄)╭
Why don't they just move into an apartment in Jinsook's building ??
I mean it's safer for them, and it's not like they don't have the money ( ̄へ ̄)