Reincarnated As The Heroine?! I refuse!

Once upon a time, there exist four students who were suddenly eaten by a lake.

Stumbling around in the new world, they later found it was a world similar to an otome game!

With an actual heroine at play, the irregulars of this world unconsciously drove the plot to a certain ending. However, something's greatly amiss as everything seem to be a little bit too realistic and a little too tragic.

They were supposed to be normal, if they were not the irregulars of this world. A simple otome game was completely not so simple anymore once the capture targets were involved and a certain heroine becoming strange! And did anyone mention there were others just like them? Irregulars? Well, we're doomed!