Mira had mentally exhausted herself from constantly draining herself in the Battle Tower. She missed an entire day's worth of cultivation due to this, but it's not like one day would make that much of a difference since she needs a tremendous amount of Qi to advance to the next stage.
But the next morning, Mira woke up and carried out her normal routine of training and cultivating. But while Mira was busy doing her normal routine, her reaching 3rd place at the Battle Tower started to spread across the disciples and even the Elders.
"Hey, did you hear that Mira reached the 96th Floor in the Battle Tower, overtaking 3rd Place? I've heard that most people that make it that far are at least Late-Stage Houtian, but didn't Mira just breakthrough into the Foundation Realm? Is she really that strong?"