Yes cuz uke used to wear his sister's clothes mostly twins wear same clothes when they are child.
Yess typical plot when there are twins in yaoi hahahahaha
Yah typical I m sure he is desperate to get his sister more he would leave kiria without a single thought too till he realised he was the one he was looking for all along not the sister that would be hella angsty
THATS EXACTLY WHAT I THOUGHTTT
It's just a hunch but the cliché is that the ml mistook the mc as his sister when they were younger.