I can't access this town because I don't know how to obtain a bridge in this DEMO...
The process of obtaining the magic bridge requires completing a bunch of pre-tasks.
After completing the team formation in the main city for the first time.
Go to the tavern to accept the task of guarding the North Star Temple. After completing the conversation, go out from the upper left city gate to the temple to complete the event.
After solving it, unlock the magic shop in the main city. After purchasing the jumping magic book and learning it, go to the city passed by in the prologue from the lower left city gate.
After arriving, go to the tavern to accept the task with the magic stone as the reward. After the conversation, go out of the city to challenge the maze under the cliff to complete the trial version process.
After returning to the main city tavern to accept the time-limited task of the newly unlocked rescue captain, go out from the upper right city gate all the way to a cave, turn left, and then go down through the foggy area. There is an event battle.
After the end, use the bomb on the cracked ground to go to the lower level and explore the female captain. After the event battle, return to the main city tavern to get the task reward silver key.
Now all the pre-tasks are done. Go back to the city passed by in the prologue and leave from the bottom. There is a small house at the gate of the city that needs a silver key to open.
Interact with the box inside, and now you can finally get the only magic bridge in the current version.