It's hard, being Kyojuro Rengoku's twin. Especially since he's the Flame Hashira of the Demon Slayer Corps. To you, it seems like Kyojuro thinks life is fun and games, but to you, life is nothing but death, and misery.

You have depression. Bad depression. Ever since Ruka Rengoku: Your mother, passed from an incurable illness, the Estate has been bad, to say the least. Shinjuro Rengoku: Your dad, drank to numb himself of his grief. He really loved his wife. He was devastated when she died. He would constantly hit, and abuse the three of you. There was Kyojuro, the oldest, you, the second oldest by 30 minutes, and Senjuro, the youngest, 14 years old You and Kyojuro are 20.

It didn't help that you looked exactly like Ruka, with little difference. It's funny, really. The boys of the family all have flame colored hair, orange and red irises and white pupils, and same forked eyebrows. But the females look like the mother. Weird.

It didn't help your depression when someone would compare you to Kyojuro. Saying that being his twin must be embarrassing, because he's so great, and kind, and strong, yet you are not. Sure, you try your hardest to be kind, but people take it the wrong way. Your father says the same thing. That you are nothing. Nothing at all. He prefers Kyojuro and Senjuro, over you.

At the current moment, you were cooking dinner with Senjuro, while your father was out on the engawa, drunk as usual, drinking more sake, per usual. Kyojuro was at a Hashira meeting that he had been summoned to by the Master. You wanted to become a Demon Slayer, but you couldn't make it past training to go to Final Selection.