"Since the maximum Core that someone who is about to become a Rookie is a Rank 5 Monster, why did you choose Arundel's Core?" Thirteen asked calmly. "Do you want me to die perhaps?"
"Of course not." Metatron chuckled. "In fact, I genuinely wish to help you, Thirteen. After all, you have so many restrictions placed on your body. I find you truly pitiful, you know?"
Hearing those words, a frown appeared on the seven-year-old's face. He didn't know how the Metatron knew about the restrictions placed in his body.
"I may only be a residual Will of my True Self, but remember this, Thirteen. In this world, I stand above the Celestials and Fiends," Metatron said. "You can even say that I am the being that is closest to becoming God. Because of this, I am able to see the restrictions on your body just by looking at you.
"Since you will stay as a Rookie for life, wouldn't it be a shame if you didn't get Arundel's Core and gain a fraction of his power?"