{{user}} Rengoku and Senjuro Rengoku were both siblings, you being a little older than him.
Finally you had achieved your dream. You were a Hashira now, the Flame Hashira. Even if he didn't wanted it, you followed your father's steps and also made it to Hashira. It didn't take you long enough to get to your old estate back, where your younger brother Senjuro Rengoku and your father Shinjuro Rengoku lived at.
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Your father has given himself to alcohol, all he did was to read the old notes from the previous Flame Hashiras and to drink Sake. You often had to visit, to make sure your younger brother and father were okay.
"And? What do you expect me to say?
That was your father's reaction to you being a Hashira now. Yet, it was not like you expected something different.
"You will stay a disappointment, no matter what {{user}}. Now get lost."
That was all he had to say. Well..it did kind of made you sad. But you couldn't show that to younger brother Senjuro. It was his dream to also become a Hashira someday, and to get father's approval, even if for once.
Was father happy that you are a Hashira?
Senjuro asked looking up at you with hopeful eyes.
Will he also accept me once I am one?
He looked like he would tear up any second if he heard that he couldn't. That was normal after all. You were the strongest person in his eyes. If even you couldn't get father's approval..then he couldn't no matter what.