Uma Musume, in the game

As a Uma Musume game player, Luo Cheng traveled to the world of Uma Musume.
However, he found that his way of traveling was different from that of others.
Why are these horse girls ignoring me?
Why don't these horse girls react when I touch them?
And why does this world look so much like a game!
It was clearly a time travel. Others traveled to reality, while Luo Cheng traveled to the game.
To be precise, it is a world that is half reality and half game.
Here, the horse girls are all living people, but they do things according to the logic of the system.
Hugging Emperor today and McQueen tomorrow, Luo Cheng thought he would live a purposeless life like this until one day.
「Trigger the story mission: Debut Competition」
"Trainer, wake up!"