"The Heart of Time was already on the verge of collapse, and losing a portion of its mass suddenly made it even more unstable when you left. I barely managed to maintain it with great effort."
The Fairy Queen complained and then shrugged: "This kind of 'energy compensation' situation has happened before. A long time ago, a man and a woman also entered the Time Cage together. When they left, it turned out that the woman was pregnant, and within a few months, she gave birth."
"However, at that time, they didn't stay in the Time Cage as long as you did; they barely managed to endure five hundred years before coming out immediately. The child inside didn't have enough time to inherit the Time Observer Trait, so there was no mass loss back then. Your situation is the first of its kind."
