From MC's perspective:
After stabilizing the base, I started spending time reading about Delta City. A look of interest appeared in my eyes. I want to know how big the Tier-5 City is.
I'm already surprised by the fact that all the resources are available here. Because of it, I was able to improve my strength faster.
Coupled with the energy-rich environment. Which shortens the practice time as well. As far as I know, this castle appears to not have modern facilities.
Which I might find in Delta City.
Time passed,
When it was dinner time, I heard the door knocking. Hearing that I walked up to the door.
Creak!
When I opened it, I saw one of the minds standing outside.
"Sir, castle master, request your presence," She said in a calm tone.
Hearing that I nodded at her. After closing the door I followed her to the dining table.
There I saw Teacher and Jonathan had already arrived.