It was a beautiful 日 in Equestria. A quarry opened, and all the ponies that worked there were stallions. They would collect stone, to make statues, buildings, sidewalks, and many other things.

One day, 虹 Dash met with Celestia at her cloudhouse.

Celestia: The quarry needs a pegasus to help out for a few days. The manager, and I agreed that あなた would be the best option. I will find others to take over your work until あなた get back.
Rainbow Dash: I won't let あなた down. *Flies to the quarry*

By the time she arrived, 虹 Dash met an earth ポニー named Michael. He was not happy to meet Rainbow...