百舌鳥ノ贄

Taisho Era. Main character returns to Japan after getting education in Europe, but he does not receive a warm welcome. His father committed suicide after being driven to poverty and his sister suffers from a disease. Now is the hour of revenge - all the brokers and collaborators will be deprived of their most precious treasures - the innocent smiles of their daughters and wives.

[From vndbreview]