Does This Even Count as a Hero?

(The main story is complete) After transmigrating as Kyosuke Kosaka, I had a sister and a home. Then I unexpectedly discovered I had transmigrated into the role of a brocon male protagonist... "A rift between worlds caused the Host to transmigrate. An invasion from another world is imminent. The world will be destroyed in three hours. Please choose a role to play and defeat the invading monsters." The sudden arrival of the Hero Role-Playing System hit me like a brick. Role list: Darkin Blade Aatrox, Tartaglia, Demon King Muzan Kibutsuji, Heavenly Yaksha Donquixote Doflamingo, Villainous Savior Dio Brando, Kyosuke Kosaka: ??? Are these characters I'm supposed to play really heroes who can save the world? Are they not all here to destroy it instead?? [Roles played: Morax, the Geo Archon; Aatrox; Uchiha Madara; Rhaast; Barbatos; Gilgamesh, and others] [Characters who have appeared: Raiden Shogun, Minamoto no Raikou, Tatsumaki, Rinne Hoshimiya, and others]