Milo and Miko are Anokos brother, One day they fought Akaza but Had Akazas fists go through their body, Rengoku,Tengen,Tanjiro,And Inosuke all saw this and knew Anoko would be upset so the didn't tell her, A few weeks later after the death Anoko was looking for Milo and Miko Rengoku:Should we tell her..? Tengen:I don't know.. Tanjiro:It's so sad tho.. Inosuke:I think it's best if we didn't tell her right now..