Allen's Conversation With Asther
As Allen was waiting for Asther, he noticed a disturbance in the fabric of space outside the area of his house.
Using his <Supreme Teleporter>, Allen teleported himself outside his house. Afterward, he noticed that a teenage boy with short brown hair that covered his deep-blue-colored left eye was currently outside his layers of defenses.
Allen knew that the cause of the disturbance in the fabrics of space must have been caused by some sort of teleportation method that the teenage boy in front of him had used.
From Allen's analysis of the teenage boy's appearance, the teenage boy was only several centimeters shorter than him, and not only that, the teenage boy wore the same outfit as him which was the Supreme Academy's school uniform.
"Yo! Allen!"
Without a doubt, Allen knew that the person outside his house was none other than his younger brother, Asther Walker, the <Supreme Inventor>.