This cave is the location of Tempest's The Hipokte Grass farm, Which is under Gabil’s supervision. The Hipokte Grass can be cultivated due to the high magic energy density of this lake inside the cave. By using the water in the lake they are able to dilute the restorative pill. From a single pill they can create 20 medium grade medicines.
- This is the cave that Veldora Tempest was seal inside of by Chloe O’Bell with her Unique Skill Infinite Prison over 300 years ago.
- Rimuru Tempest was spawned as a slime and named by Veldora Tempest in this cave. He defeated many of the cave's inhabitants gaining their skills before leaving the cave.