Thank you for sharing your vivid and intricate dream! Dreams like this often reflect our subconscious thoughts, feelings, and experiences. Here are some interpretations and insights based on the various elements of your dream:

1. Alternate World and Adventure: Being transported to a different world, like an "ark," suggests a desire for escape or adventure. This could represent a longing for change or excitement in your life.
2. Sister's Role: Your sister, Journey, plays a significant part in the dream. This could symbolize your relationship with her and the importance of family bonds. It may also indicate a shared experience or journey you both are navigating in real life.
3. Dragon and Taming: The baby dragon and the process of taming it symbolizes challenges or ambitions that you want to master. The dragon can represent power or potential, and acquiring it could reflect your desire to control or harness your abilities or passions.
4. Futuristic Setting: The neo-Tokyo style buildings suggest a longing for exploration and innovation. It might indicate feelings about the future, technology, or a desire to fit into a modern or fast-paced environment.
5. Family Dynamics: Your interactions with your family, especially the casual acceptance of your adventures, suggest a supportive home environment. The humor surrounding the dragon indicates a playful family dynamic.
6. Trick or Treating: The absence of trick-or-treating might symbolize missed opportunities or a desire for community and connection. It could reflect feelings of being left out or wanting to participate in social traditions.
7. Law and Authority: The rules about driving and the consequences of actions reflect feelings about constraints in your life. Your sister's struggle and your choice to jump out of the car may symbolize a desire to break free from limitations or protect those you care about.
8. Dangerous Forest and Pokémon: The forest filled with Pokémon that can be dangerous represents the unknown challenges you face. It may suggest that you are navigating through difficult situations but have the strength to overcome them.
9. Caring Nature: Your instinct to help your sister signifies your protective nature and the importance of looking out for loved ones, even in risky situations.

Overall, this dream reflects themes of adventure, family, protection, and navigating challenges. It might be beneficial to consider how you can apply these themes to your waking life, whether by seeking new experiences, strengthening family bonds, or addressing any fears or challenges you face. If you have any specific feelings or situations in your life that relate to these themes, reflecting on them may provide deeper insights.