Two-Faced Firefly
Just the sounds of the double door closing startled him. It was loud, carrying with it mild shockwaves that stirred up the air. His face was flushed red, his thumping heart sought to jump out of his chest, the sounds of his pulses echoed in his ear.
This wasn't his first time entering the Labyrinth of Frenzy. He had entered it a total of three times before this. But, during those three times, he was accompanied by a psychic arm of Madam Mila. Moreover, a partition of yellow existed 10 metres into the path—from the entrance. This prevented him from taking a look into the actual Labyrinth.
In the open space, Madam Mila brought in a single Frenzy Beast every time for him to practice. It was her way of helping him since he couldn't use his full strength under the watch of others. She also taught him some methods to use his corrosion.