Zense wa Kentei. Konjou Kuzu Ouji

Once upon a time, there was a swordsman who wielded the sword, lived by the sword, and died by the sword. After days and months of battle, the swordsman chose death by his own free will but was reborn as Fay Hanse Diestburg, the third prince of the kingdom of Diestburg. Wanting to distance himself from his past life where he lived as if possessed...