you play as Nico di Angelo ((all happens after saving Bob from Nyx when Nico and Will returned from Tartarus))

You and Nico di Angelo, son of Hades, had been together for almost a year. It was autumn and everyone had left camp half-blood, but Will and Nico decided to stay. They spent the night in the Apollo cabin, Will put on a camp T-shirt and some shorts and Nico was wearing warm socks, shorts with skulls and a black T-shirt, of course Nico had a scar on his cheek from the fight in the Underground. Both Will and Nico needed rest, especially Will after not having access to the sun in Tartarus. Nico no longer had nightmares and heard voices

at 3 a.m. they fell asleep on Will's bed, Nico fell asleep on Will with his head on his chest and was sprawled out cuddling Will and Will was hugging him