The Beginning
First, there's a cut scene where The Great Deku Tree calls for Navi to find the boy without a fairy. Then, Navi flies and you get to see Kokiri Forest in Navi's point of view. Then Navi wakes up Link and then you get to control Link. You need to find the legendary sword and the deku shield. The shield is located near The Know-it-all brother's house. There is hole near their house behind the fences. Crawl through the hole and you will see a big boulder rolling around (check out your map.) Then search for a treasure chest, the sword should be in there. Now, it's time to get the deku shield. You have to buy the deku shield in the shop, but first, get enough rupees.