Recently, Duke researched many documents but failed to find any information related to the small tree, so he decided to name it the Golden Tree, and the fruit it bears, the Golden Fruit.
The nature of the Golden Fruit is extremely special, different from typical treasures that increase spiritual power or lifespan.
The energy it contains is something Duke has never seen before, providing excellent nourishment to the soul and spiritual power.
Furthermore, the current upper limit for consumption remains invisible, suggesting it can be consumed continuously to perpetually increase spiritual power and lifespan.
At least, given Duke's current life level and spiritual power, continuous consumption seems to consistently provide gains.
Nevertheless, this is somewhat against common sense, so Duke speculates it's due to his presently low spiritual power and lifespan, which makes it hard to determine the upper limit.
