I have some notes I put on the translation page that I will share here
NOTE the two brother's are named after him using a single kanji for his name.
晃志郎 (Koushirou)
秦志 (Soushi)
志 Will, resolution, Ambition
晃一(Kouichi)
晃 Clear, Dazzling
I Really don't care for Kouichi and the shit he pulls...