Yes, he does. Gary Busey's singing in The Buddy Holly Story was a notable aspect. It helped bring the character and the story to life, making it more engaging for the audience.
Luke could also be a book collector or a bibliophile who likes to customize the books he owns. In this case, he has 'cut' a romance novel, perhaps by removing pages he didn't like or by creating a unique binding for it. However, this is a less common interpretation compared to the first two.
Luke's ticket could be exchanged at the NPC, Erika. Players need to prepare 10 data chips and 5 refined spacetime stones as exchange materials. Each player can use their account to buy 10 tickets per day. The Luke ticket was used to enter the Luke Instance Dungeon. Players could team up with their friends to challenge it and have a chance to obtain high-rare and powerful equipment. The Luke Instance Dungeon could only be played once a day and twice a week. The number of times would reset every Sunday.
I'm not sure specifically who 'Luke Guldan' is in the 'Tell Me a Story' context without more information. It could be a character, an actor, or someone related to the production in a unique way.
His best friend could be a main character. Maybe his friend is like a side - kick in the 'game' of his life, always there to help him with quests or give him advice that's like hints in a game.
Luke 2:1 - 19 is a Christmas story because it tells about the birth of Jesus. It describes the events in Bethlehem, like the shepherds in the fields. The angels appeared to them and told them about the birth of the Savior. This is a central part of the Christmas narrative that we celebrate every year.