Fifteen minutes before the rain of lasers can be used again. That's up to five minutes after the start of the next wave. All the girls turned serious upon hearing this fact.
"Wait, but you and Michelle can fight demigod-level monsters, right?" Aqua asked innocently.
Lilith smiled suggestively, turning to face her before answering. "Until the 4th wave starts, Michelle and I need to rest and recover our mana. So, until then, you girls will be in charge of defending this base."
Everyone turned to look up, scanning the entire base. A wide space where they could move freely, with four sides covered in tall earthen walls. Walls that, with just a single attack, could disintegrate into nothing.
Although the place looked fortified enough already, they all knew that to the boss monsters, they were nothing but a paper-like defense that would be destroyed in a single hit.