Existence out of poverty

Those who have been separated since birth... those who followed him... those who lost their parents... those who were cruel to their sick little sister... an Isekai story of Ren who continues to exist in the world, trying to survive. In this world, an unsuccessful heart, which has tried every way to find medical money, finds itself in a different world through a hopeless foot and war.

Isekai- Hight Fantast