The last thing anyone expected was for the older twin to manifest Cloud Flames. (Or the one in which Tsuna is Xanxus' Cloud Guardian, flat-out terrifies anyone who's heard about him, has a younger brother who loves him, is possibly in a queerplatonic long-distance relationship with Hibari but will never admit it, and is the big brother you never knew you wanted in your life.)

Xanxus doesn't put it all together at first. He's too focused on protecting his family from the spawn of Iemitsu. But then Squallo saves the Rain brat, and Xanxus takes a second look.