Adventure is also a theme sometimes. They might go on an unexpected adventure together while on a case or outside of work. This could involve traveling to a new place, facing some sort of danger, and relying on each other to get out of the situation. It's a way to add excitement and action to their relationship and storylines.
One great place to find 'penelope garcia luke alvez fanfiction' is Archive of Our Own (AO3). There are numerous stories there. You can search by the characters' names and filter by your preferred ratings and tags.
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 and Solo were the two main characters in the Star Wars series. They were all heroes of their youth who had experienced many setbacks and growth. Luke longed to fly and escape from the planet that bound him. He planned to join the Imperial Military Academy. Han Solo also yearned for the life of a pilot, and his path also pointed to the Empire. They all wanted to become pilots and draw their own destiny in the starry sky. Luke's performance was relatively gentle, while Han Solo was a hooligan who was the most important to his survival. They had a complicated relationship in the series, sometimes friends, sometimes enemies. The story of Luke and Solo played an important role in the Star Wars series.
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.
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.
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 might meet other students. Some could be from noble families, others from different planets. There could be a bully - type character who gives Luke a hard time, and also a kind - hearted student who becomes his friend.
Their relationship could develop through mutual support. Since they are having a baby together, they would need to be there for each other. For example, Luke could be there for Jessie during her morning sickness.
One of Luke's main allies could be a new character, let's say a scientist named Dr. Mills. Dr. Mills has been studying the walkers and has some knowledge about their weaknesses. Also, a group of children that Luke stumbles upon could become his allies. They might not seem like much at first, but they have a great sense of the surrounding areas and can help Luke find food and shelter. And of course, there's always the possibility of an animal ally, like a loyal dog that warns Luke of approaching danger.