Below is a walkthrough of To the Meline Crystal Caverns main story event in Rune Factory 5.
Client: Livia
Location: Meline Crystal Caverns (Recommended Level: 12)
Objective: Investigate the Meline Crystal Caverns
After taking Lucas to the Silo, Livia will task you with exploring the Meline Crystal Caverns. Exit the town from the northwestern side past the blacksmith and follow the path heading south to reach the frozen mountains. There you will find the Meline Crystal Caverns to the southwest of Crystal Lake. Head inside to trigger a dialog event.
Meline Crystal Caverns B1
Connected to the 1st area of the floor, you’ll find some icicles blocking a small room. Break them to find a chest containing the Fireball spell then work your way to the next floor fighting the enemies along the way. Keep an eye on the falling icicles that will fall as you move around the area. Another thing to note is that there are 3 stairs leading to the next floor. They are in the southeast, eastern and central areas of the floor. The one in the central area is the way forward in this dungeon. The other two are secluded areas that contain chests.
Meline Crystal Caverns B2
Keeping heading deeper into the dungeon. Towards the middle of the middle area, you’ll reach a section where icicles continually fall from the ceiling. For this part, you’ll just want to run through it as fast as possible.
Meline Crystal Caverns B3
Head to the center of this area to trigger a dialog event leading to a boss fight against the Kraken. It will attack from the water in the center of the room using various ranged water attacks. Dodge them then attack the monster when it gets close to the circle around the outside of the area that you’ll be fighting from. After you’ve defeated the creature, another dialog event triggers leading to the end of the event.