5-Oku-nen Button Part 2

A group of individuals discovers a mysterious button that, when pressed, fast-forwards time by five billion years. As they experiment with its effects, they encounter the consequences of drastically altering the timeline. The episodes explore the implications of their actions, showing how the world changes with each press. Characters must deal with the aftermath of their choices, including the evolution or destruction of civilizations. The narrative focuses on their attempts to understand the button's purpose and whether it can be reversed.