Dreams involving transportation, such as being on a tram, often symbolize your journey in life or your current path. The presence of your coworkers may indicate that you are navigating your work life or professional relationships.

Seeing characters like Nunu and Willump from the game League of Legends could represent aspects of playfulness, teamwork, or adventure. They are known for their cooperative nature, which might suggest that you are feeling a need for collaboration or support in your waking life.

The juxtaposition of the tram and sky station could signify a transition or a shift in perspective. You might be feeling elevated or looking at your situation from a higher vantage point, possibly reflecting on your career or personal growth.

Overall, this dream could encourage you to embrace teamwork and to find joy in your professional journey while being aware of the changes and perspectives that come your way. It might be beneficial to explore how you feel about your current work environment and the dynamics with your colleagues.