Is this also considered a hero?

I had a younger sister and a house through time travel to Kyosuke Takasaka, but when I accidentally discovered that I was the male protagonist controlled by the younger sister...
"The crack in the world is opened and the host crosses over. At the same time, the invasion of another world is coming. There are still 3 hours before the invader destroys the world. Please choose role-playing to defeat the invading monster."
The sudden hero-playing system has come a long way.
play list:
Darkin Sword Demon Aatrox
Daddalia
ghost king ghost dance Tsuji no misery
Yasha Doflamingo
villain savior dio brando
Kyosuke Takasaka:? ?
Are these characters to be played really heroes who can save the world?Didn't they come together to destroy the world? ?