Rinko is really cool, but he kinda pales in comparison to the other 3
Kyou En fought 4/6 of the Qin Six and Renpa and survived. He's like the Juuko guys basically, a former GG of a smaller state. Also one of the 10 Bows.
Kaishibou is equal to Renpa in "destructive power", and has been mentioned in the same breath as him when it comes to martial power. I think it was mentioned he either slayed 100 generals or conquered 100 castles.
Genpou could have been the Shouheikun of Zhao, and only lost to incredibly unconventional tactics.
Kyou En fought 4/6 of the Qin Six and Renpa and survived. He's like the Juuko guys basically, a former GG of a smaller state. Also one of the 10 Bows.
Kaishibou is equal to Renpa in "destructive power", and has been mentioned in the same breath as him when it comes to martial power. I think it was mentioned he either slayed 100 generals or conquered 100 castles.
Genpou could have been the Shouheikun of Zhao, and only lost to incredibly unconventional tactics.