After you beat the game, go to Kaede's Village and talk to a hidden cat. You will start the game with high stats.

Beat the game and save your data. When you start a new game you must find the talking cat in Kaede’s village in order to regain the stats from the completed game. The cat is near Kaede’s house next to a man standing under a tree.

Here's to unlock three of the many mystery field events. You plant these at that field in Kaede's village. (Note: this is not a requirement to pass the game.)

• sky blue seed + mystery soil
• silver seed + whale tail
• crimson seed + blossom branch

When you begin the battle with Kanna, you have to listen to what she says it helps you out in battle. When she says "you can have it" don’t attack her, all of your attacks will be reflected back to you and do damage. During this time build up your defense and attack. When she says "I want your soul" you can attack her then, if done correctly you should beat her with no flaws.

You talk to the guards in front of the castle. Then, without talking to anyoen else, go to the inn. The headman of Kasasagi Town will be there. He'll take you with him and you'll get into the castle.