From The Red Fog 04 (Engelstalig) - Manga

A young boy who came from the darkness now lives in the light. Although he has found companions of a sort, his truest desire―to search for his mother―will lead the lonesome boy elsewhere. Doubting the assassins guild he found himself a part of, Ruwanda enlists Ivan in his quest. But as the two uncover deadly secrets about the Organization, the red fog follows close behind...