After rescuing Patty and finding Edwinn's old Inny award, you should head to Stornway to pay Erinn a visit.
Visit the Inn
Once you get to Stornway, go to the inn and you will see some automatic scenes with Patty and Erinn. Afterward, talk to Patty or Erinn. Agree to help find guests for the inn, then go outside.
Then you can go right back into the Inn. Erinn already has it ready. There is a Celestrian named Pavo sitting on the counter on the right. You can talk to her to learn about the Rapportal, which allows you to play the game with up to three other players using the local wireless.
If you talk to Erinn, you can stay for the night. There is also an option to canvass for guests or view the guestbook. These options are performed via Tag Mode, where you close your DS and walk around.
Add People to your Party with Patty
You can also talk to Patty, who can add new people to your party. There are a few randomly generated characters, but you can also create your own new characters if you wish. I recommend having a Priest on your team to take care of healing. It helps to have a Thief with you, because they can learn to steal items from monsters, which you will definitely want to do as the game progresses. Mages can be useful for the elemental damage that they can do, Warriors are good for their high attack power, Martial Artists are agile fighters, and you're a Minstrel so you should already be a little bit familiar with the abilities that you have.
If you talk to Patty and add one or more characters to your team, she will teach you the Egg On move, which boosts tension, giving you a temporary boost in attack strength.
If you have more people in your party, you can go to the Misc. menu to change their tactics. If you tell them to Follow Orders, then you have to choose what they do in battle. But you can choose other options, such as Show No Mercy or Fight Wisely, to make them automatically choose what to do in battle. You can change tactics during battle via the Misc. menu.
You can also switch your weapons during battle via the Misc. menu.
After battles, experience points are divided among you and your party members, with higher-level characters receiving more EXP than lower-level characters.
If any of your characters die, go to a church to resurrect them. You have to pay for the resurrection however. Priests eventually learn a resurrection spell.
Walk to the left from the Inn entrance to find a well. Go down to find a red chest that contains linen gloves. Then go back up, and go north to the nearby stairs. Down below, you find a red chest that contains lambswool, and a blue chest that contains a random item. Go back outside, then go north and walk behind the house to find a red chest that contains a Mini Medal. The weapon shop is to the east, and it has a red chest that contains a Seed of Strength, as well as a blue chest.
Talk to the locals in Stornway, and you will soon learn that they are being terrorized by the Wight Knight. The King is looking for someone to help vanquish the foe, so you should go to the castle and talk to King Schott.
The king will say that the Wight Knight will be at Loch Storn, so that is where you should go when you are ready.
Preparing to Fight the Wight Knight
However, you should really add some people to your party before you go to Loch Storn, and gain some levels. The Wight Knight is difficult, especially if you try to go alone. Read the "Add People to your Party with Patty" section above to learn how.
In the inn, there is a woman near the entrance of the inn who runs the bank. If you have at least 1000 G, you can deposit it into the bank. This is useful, because if you die in battle, you lose half of the gold that you are carrying. But if you deposit the money into the bank, you won't lose any of the money in the bank if you die.
Be sure to check out the weapon and armor stores, especially after you add people to your party.
There are some quests that you can accept in Stornway, too. Be sure to talk to everyone and look for people who have a blue speech bubble over their heads. They will give you quests.
You should go around and fight monsters with your new-found party members to gain levels. If you want to fight tougher monsters, head east from Stornway to find Eastern Stornway. There are monsters in the grassy areas and different monsters in the beach areas. You can find seashells in the beach areas as well.
Go to Loch Storn
When you are ready, go back to Western Stornway, then go north from the castle. There is a dead end in the northwest, a locked gate in the northeast, and the bridge to Loch Storn is to the north.
Once in the Zere area, go north and slightly east to reach Loch Storn.
When you get there, if it is daytime, there is no sign of the Wight Knight. Stella will ask if you want to be there for a while longer, so say yes. The Wight Knight will appear, and will attack.
The Wight Knight
The Wight Knight is tough, but if you added some people to your party and gained levels, it shouldn't be too difficult. The Wight Knight can do Bolt Cutter, which is a lightning attack to a single person, and Multithrust, which can hit everyone in the party, sometimes multiple times per person.
When you defeat the Wight Knight, he will ask you to take a message to the King, so return to Stornway.
Back in Stornway
Return to the king. You will need to go in daytime, so rest in the inn if it is still night, or just wander around outside.
After hearing what the king has to say, leave the throne room and Simona will talk to you. Go through the south door and follow the path to Simona's room. She will ask you to talk to her old nanny in Zere. You can get to Zere by going northwest from Loch Storn.