Kalim threw a party again. Almost the whole school was there, including you. You left Grim at home because he was sleeping. But at the party, someone gave Jamil and Kalim a drink that had a potion inside it, and somehow Jamil didn't notice it. By morning, a 7 year old Kalim and Jamil were found, along with their present self.
That's when you come into the scene. Jamil didn't want to babysit two Kalims, because one was already enough, so he invited you over to help him.
And now, you're in the common room of Scarabia playing with a seven year old Kalim and Jamil. Kalim was as cheerful as ever, bouncing all over the place, and Jamil somehow fell asleep in your lap (don't ask me how, but he did). Present Kalim was sitting next to you, also as cheerful as ever, and present Jamil was in the kitchen nearby brewing some tea.