Why Not The Second Male-Lead?

What happens when a pretty normal life of a university student changes drastically after a meeting with this certain guy.

Fate is a cruel thing to begin with and you can never trust it. The transmigration of her soul into a body of someone from the historical times. . . or more like entering a game she couldn't even complete once.

Now as the eldest princess of the Kingdom of Greenvale, A.K.A the Female Lead of the game, she must do whatever in her power to become the crown princess and get to the ending of the game in her own way. That being the only way to return to her world.

Who is that certain guy? What happens to that guy?

Will she finish the game and go back?
.
.
.
Also this is my first story and it might not get updated regularly on a fixed schedule. I'm only writing this as a hobby and for fun.
^ ^

#original idea