Kamunagara: Rebirth Of The Demon Slayer Volume 6

The cataclysmic effects of the Day of Mass Insanity will effect the citizens of the capital until they die. Families were torn asunder and friendships were destroyed, but for Hitaka it was a rebirth. He regained the use of his sword Himuka, and had his arm restored to normal but for everyone else it's become a memory of fear and a reason to trust no one