The Unfulfilled god's Tower...

"He was an entity faced with the heavenly god trial, and he passed it. Unfortunately, passing it would mean that he would have just three seconds to ascend to the higher realm.

But the god had wishes that were unfulfilled yet, and he only had three seconds to fulfill them."

"The amount of time given was impossible to complete his wishes, so in the last three seconds, he built a tower, which spread into three and imbued within them his wishes, in the form of trials that lead to worlds where the mission of his wishes would be given to the trial taker to solve.

Solving the trial would mean obtaining a gift of appreciation from the god himself. A legend says that if one is able to complete even a trial, it's enough to turn the person's life upside down for good.

No one passes the god's trial and remains an ordinary mortal. That's the phrase that aptly describes the tower..." He narrated to them, causing various lights to flash in the eyes of the students.