Hi! Thanks for playing! In MIRU 1 every time you leave a tile, it's a new day. (consider tiles as HUGE and it takes a long time to travel to each one) So when you visit a village and pick up a quest, you'll need to eat & sleep and then the next day you can head towards the quest tile. And in a similar way, to return back to the village would take another day. every line you cross marks a new day. (Works like this in MIRU 1&2, MIRU 3 will change this a little bit, but cross that bridge when we get there! haha!)
have fun! Good luck!