In a world separated by the pure society and the shunned society, comes an epic battle for freedom. Lost Memories and Keeper are Society vs Society. Both manga take the view of what it is like to be shunned from the pure society and fight to be a part of it. The people desperately want into the pure society but have yet to realize the pure society is a terrible life style. Interesting conflicts arise and the pace of each manga is good. If you liked the theme of one then you will the other.