After clearing up the misunderstanding with Yujin, the doctor regained her senses and promptly chose to return home.

*Whispering sounds*

"Here, Alice. Take this."

"…?"

But before leaving, she handed something over to Alice.

"What is this? A cube?"

"It's a device that blocks Mana's tunneling phenomenon. It temporarily creates a mana over-saturation within a 30-foot radius, increasing the V-value of the energy barrier. The technical explanation is…"

"Are you speaking English? It sounds like Portuguese."

"…In short, it’s a device that temporarily seals mana. Originally, I designed it to suppress Seo Yujin."

The item was an invention, a prototype …