Zenmon no Tora Koumon no OkamiWolf at the Back Gate, Tiger at the Front Gate; Zenmon no Tora, Koumon no Ookami; 前門の虎・後門の狼

Lacking in polities, the more than capable Captain Jotetsu was never promoted. One day, while on his mission of conquering the mountain thieves led by Rou (wolf) and Rekko (fiery tiger), the supposed conquerer Jotetsu became the conqueree? (summary taken from Fantasyshrine) NOTE: First 5 chapters done by Desperate Love should be read left to right.