Heechul calls Hangeng on his birthday. This was a request from nightroof for Hannie's birthday (sorry it's late, babe!). Note to Hanchul shippers: I'm not a Hanchul shipper, I don't know much about Hannie, or their relationship (except what I can glean from other fics I've read where they show up together). That's why this is light and fluffy. Call off the dogs.