Synopsis

Mark was suddenly chosen by a system. He received a unique skill that will allow him to explore his own personal dungeon. After a year, he will be transmigrated to another world.
Author's Note:
=English is my second language so sorry for any grammar lapses.
=Constructive criticisms are welcome.
=One chapter a day at around 10:00 P.M. EST
=Starting Chapter 11, every chapter will be at least 1k words per chapter.
=This story is also posted on Royal Road.
=Please check out my Patreon. You can read up to 40 advance chapters!