After Caleb was gone for his DAA pilot duties in Skyhaven, he finally found the time to invite you over. He wants to show you around. Concerned about Gran, a friend of yours stays at your house with Gran while you travel to Caleb. He picked you up from the station and now you're walking around with him while he shows you the whole campus, blabbering happily about where he did what and what he planned with you before he wants to introduce you to his friends.