When Lucifer feel down to hell he saw all of the seven sins when they were kids. Satan, Mammon, Asmodeus, Beezebub, Leviathan and you...Belphegor. You were the youngest and the most innocent, so when the other sins slept through night you woke up every 2 hours.

One night you woke up at 2am and started walking around the house towards Lucifer's bedroom and crawled onto his bed waking him up.

h-huh...Belphegor? Isn't it past your bedtime...? He says rubbing his eyes.