Pokémon Super Mystery Dungeon/Chapter 2

Meeting Your Partner
Once you get to Nuzleaf's house, a cutscene will play where Nuzleaf shows you around. When he shows you your room, he wonders why the Beeheyem were chasing you. He then decides to go enroll you in the school (to avoid suspicion, apparently), and tells you to "not stick one toe outside this house" until he gets back. From this point, you can move around, but the moment you do, a cutscene plays where you see someone in the window, and decide to confront them outside. When you do, your partner will appear and say "I knew it!", surprising you quite a bit. Your partner then welcomes you to Serene Village and proceeds to drag you around the village. When you get to the village square, your partner will make a slightly rude joke about Miltank, and then proceed to show you around the village. He tells you about the Kecleon Shop and the Deposit Box (both of which are extremely useful, especially later in the game). He tries to tell you about some of the other shops before a bunch of angry villagers come after him, supposedly for somethings he did. Who knew people hated him so much?

Your character wonders what in the world just happened before deciding to explore.

Exploration
When the cutscene ends, you get another notification saying that you can save anytime by going to the X menu. This is yet another relatively handy tip for later in the game. Press B and start exploring!

Cafe Connection
This cafe can hold items per the request of people you rescue during missions. This feature isn't really useful until you actually start doing missions (after Poliwhirl River), but it's worth knowing about for later mainly so you can easily get the items that you receive from people.

Kecleon Shop
A shop containing useful items. If you got some items in the dungeons you did, you can sell some items (don't sell your Oran Berries or Tiny Reviver Seeds as they will be useful for the dungeon you are about to do) and get some money. If you can afford it, buy more Tiny Reviver Seeds as a failsafe. The best way to use them is to fill your inventory halfway with Tiny Reviver Seeds or Reviver Seeds and put the rest of the seeds in your Deposit Box, so you have more when you run out. This strategy is easier to do later in the game, when you have access to Cofagrigus's Shop.

Hawlucha's Slam School
Useful for learning moves that you either got rid of in the past or didn't mean to get rid of. Later in the game, when you recruit Smeargle, you can use his Sketch on a Pokémon to learn a move that you like, then go to Hawlucha to learn Sketch again. You can create a perfect playable character this way.

Deposit Box
You can drop off gold and items in here for later. Super useful in more ways than one.

When you are done exploring, go to the gate on the eastern side of the village square to initiate a cutscene. Once the cutscene is over, go through the village gate and follow those kids.

Foreboding Forest
When you enter through the gate, it will show a cutscene of a Deerling, Pancham, and a Shellmet arguing over a kid who ran off into the woods. They will ask you to go rescue him. Goomy is 5 floors into the dungeon, so this should be fairly easy. The first floor will again show you how dungeons work. The first item it shows is a Blast Seed. It's particularly useful for bosses and wiping out enemies in one shot (do not waste these on enemies, only on bosses). The second item it shows is a Wand. Specifically, a Slumber Wand. It's mainly useful for when you are trying to keep a boss from attacking you and also for when you don't want to fight enemies in a hard dungeon. They can be used several times before breaking. Orbs either affect everyone in a room or the entire floor. They're a lot like Wands, in a sense. The next and final item you get is a Warp Wand, which is extremely useful when you want to get rid of an enemy and you don't have a Petrify Wand (more on those later). When you come across the stairs, go down them. From there, you have to survive 4 more floors of easy enemies.

When you get past the 5th floor, you encounter Goomy, who is cowering in the back of the room. When you calm him down, he immediately goes back to crying about how scared he is. you lead him back to the other kids, where Goomy shows the kids the paper. Shelmet and Pancham decide that Goomy's writing is laugh worthy and takes it to show the entire village. Poor Goomy. When the scene ends, it will show another scene of Nuzleaf yelling at the player for disobeying him, before he decides that it was only natural you'd want to explore. He says he's pretty lax about rules, and that he won't stop you from exploring. He WILL punish you if you skip class though, so don't do that. Speaking of which, your first day of school is tomorrow! Save the game and get ready.