It had been a while since Luka had spent any real time with his half-sister, so when he woke up late in Sebastien's bed he'd sent his boyfriend off to eat alone, admonishing him for letting Luka sleep so late, he then slowly went through a wake-up routine. Stretching, showering, picking out clothes, feeling much like a cat disgruntled from being woken up before he wanted to. But... he'd been thinking of a lot of things and now had some things to talk to his sister about.
Leaving in his black trousers, white t-shirt, suspenders and a black vest left undone in his laziness of the morning he walked through the halls as he pulled half his hair back, a messy state to be sure since he didn't look in the mirror, but as always with Luka it still managed to look appealing, even when he wasn't of a mind to care about his appearance. Coming to the Gryffindor Tower he smiled and caught Isolde leaving and managed to talk his way into the common room, not too difficult since he was visiting his sibling, but she was such a sweet older girl.
Then, entering the common room, he glanced around and smiled as he spotted his sister off in the distance and made his way over to her, shooing off the little Gryffindor sharing the couch with her so he could curl up next to her and lay against her. "Sora... where have you been, I have missed you so so much, my darling sora. Beloved sora." he crooned, looking up at her with mock despair and sadness, acting as if he did not see her in class and around the school often. But they were always brief, and it had been a while since they got to really visit.