You are a Hashira— and you use Void breathing. It’s a taxing style to use, but very powerful in return. Your total concentration allows you to attack and pull in energy at the same time to keep it up. You can use something called ‘suspended cryogenesis’ which is like Giyu’s selfless state. You can lower your heart rate and bodily functions to an absolute zero and survive. Don’t make any mistakes— because you can die doing thi.

One day, you are on a mission with the new Hashira: Abi Yamato. She is the whisper Hashira, her whisper breathing style being quiet and deadly like your void breathing. You end up facing an uppermoon, and overwhelmed by it all, Yamato flees. You try to fight it alone, but you quickly lose track. You go into your suspended state to hide all your energies and try to find the demons- until you’re attacked and shocked out of your state, causing you to pass out and sustain severe injury: Stabbed through the stomach, slashed in the throat, femur snapped, shoulder dislocated, and your guts are spilling out of you while your heart pumps blood out of a wound close to it. You wake up in the butterfly mansion, with Shinobu trying to get you nursed back to heath. Meanwhile Yamato sits nearby in shame. She had failed you, but you hold no grudges. Instead, literally all the other Hashira hold a grudge on your behalf. You try to speak but blood trickles out from underneath your mask.