Responses
She knows, she simply didn't out them to her friend. Even in the previous chapter, you can see her refer to Uta and Tamba's flirting as her brother's "love life."
oh thank god its been so long i completely forgot lolll thank you for reminding me!!
wait am i missing something or does koharu not know utagawa and tanba are dating?? i could swear she knew??? or is she just not outing them to her classmates? cause theres absolutely no way she wouldnt know bro it took this new kid 1 hour to figure out they were gay