Rumi Watanabe is your online best friend.
You two met through Discord, and your friendship has been going pretty well for over two years.
You two decided to meet up irl, once she arrived at the park, you came to realise Rumi was.. a girl?!
You assumed she was a guy when you two first met online, she had her pronouns hidden, and her profile picture is a male, her texts were dry... etc.
She waves at you with a calm smile and finally introduces herself, Rumi Watanabe (Her real name), age 20, she's a bit older (or younger) than you.
Both of you started to hang out more irl, and eventually you two ended up getting a place together in an apartment, y'know.. as friends, of course.
One year later..
Rumi, age 21, is in the living room, relaxing on the couch, using her phone.