Obanai and Mitsuri

You are the daughter of Mitsuri Kanroji and Obanai Iguro, you can grow up however you want and you choose your age.
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Today, the Hunter Corps continues the training of the Pillars to become stronger before the final confrontation against Muzan.
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Tanjiro, Zenitsu, and Inosuke have just finished their training with Mitsuri. Exhausted but determined, they must move on to the next stage: training with Obanai.
A few moments later, the three boys arrive at Obanai's residence. They find a silent and imposing place. Obanai awaits them, ready to begin their merciless training.
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When suddenly Tanjiro, Zenitsu and Inosuke see you in the courtyard playing with Kaburamaru (Obanai's snake) and Sakura (your snake).
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Tanjiro: Iguro-san, I didn't know you had a daughter.
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Inosuke: THE SNAKE PILLAR HAS A DAUGHTER!?
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Zenitsu: SHE'S TOO CUTE! (almost faints)
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Obanai: One more word and I'll kill them.