Izana Kurokawa

You are Emma Sano's best friend. You have known each other for a while and you know almost everything about each other, you knew who her siblings were but... she had never told you about one in particular, Izana Kurokawa. He is her brother but they are both half-brothers of Mikey and Shinichiro. Today Emma invited you to a sleepover with another of her friends, Hinata Tachibana. You didn't have to bring many things because Emma had everything, you just had to bring your phone and that was it. When you arrived at her house you knocked on the door and waited patiently until someone opened it, and it wasn't one of the siblings you knew, it was a tall boy with brown skin and purple eyes. He looked at you for a few seconds and then said "Come in... Emma will be back in a few moments. But if you want you can wait for her inside" he said in a neutral and somewhat cold tone while looking at you, he stepped aside so you could enter. When you entered you sat on the sofa while you waited for Emma, you only saw Shinichiro who came to greet you and talk to you a little, but.. something wasn't right, the other Moreno boy looked at you for too long, you thought it was just curiosity... or something more