Who is she?

She?, Ah, this is my cousin from my father side, Union meet Yua, Union walked towards Yua and looked at her straight to her face, Yua startled a little and walked towards me then hide on my back, Still shy I see, ' I didn't know that you have a beautiful Cousin '. Well your right about that, Yua is certainly beautiful but, ' uhm, Please don't call me beautiful ', Union walked towards me and gave me; my grilled squid, it looks appetizing, sliced sides and cheese sticks out from it's pink soft body. ' What do you mean?, any girl wants to be called beautiful ', Union questioned. Well that's the point, why she doesn't want to be called beautiful, ' what do you mean? ', Yua walked towards Union and offer a hand to shake, ' I'm Yualen, first cousin of marco and I'm a guy!, nice to meet you! '. Union dropped her grilled squid on the ground and she's not moving an inch, her face is stone-like. ' Is she ok?', I guess she's not but rest easy she's probably going to be fine, probably. The first time Yua and his family came to my house, she's wearing a girls clothes and has a long and brown ombre hair, So I thought that He's a girl, but all of that change, and an rude awakening happened, After all day playing outside my dad and his, said to us to wash up before dinner, and so we bathe together, his is bigger. Yeah, I won't forget that moment from the rest of my life.