The experience-gathering speed of this small item is quite fast; open the door once, then close it again, and a point of experience is gained.
Moreover, because there's currently no ability to open the Door of Arbitrariness, it's entirely possible to quickly open and close it.
Before long, the experience was full.
Yang Yuan immediately upgraded it.
He saw the experience transform into white light, flashing continuously.
When the upgrade was complete, the small door, though still palm-sized, had transformed into something akin to a work of art.
[Marvel·Unproductive Arbitrary Gate lv.11: 0/4 (Every time this small door is opened, using one eye, you can see the scene on the opposite side of the door. The scene might be a person, or something else, or even something bizarre. The viewed location has nothing to do with distance; cannot be upgraded)]
"…"
After Yang Yuan saw the description, he was speechless for a while.
It really is unproductive.
