Responses
From what i understood it was to make the sister mad and cut off ties with the brother so that the mc would stop putting her before him. Now he has the mc all to himself which what he wanted
That's a legit explanation you got there, thank you Σ(°ロ°)
I still don't understand why bottom decide to marry the sister? He did it on a whim? Wanting MC to be mad? Looking for a replacement?
And i don't know why i reread this so many times :)