Sirius Sinclair is a compact person with morale's of that of a noble person. Such dignity and respect is well-deserved for the young man, though he is naturally born from higher-class, he wouldn't mind hanging out even with the lowest of the low. He is a doting friend, who wouldn't let anyone be left out. Though, despite all of this, he is a flawed perfectionist who can lash out if stressed out and a people-pleaser.