Try me, the Protagonists have my back!

When I reincarnated into a novel as an extra, I thought I’d be able to take the main character’s place and become the hero of the story itself. …That didn’t work out. The threat trying to destroy the world was too strong, and every time we fought, I’d lose every time. My talents were subpar and willpower faltering. It took a long time before I joined hands with the protagonist and a few others who never appeared in the story, but by that time it was too late. I wish we had met earlier. [You have failed the main story quest: ‘Prevent the World Dragon from being summoned and save the world’.] [But you have one last chance.] [The System will close down and all privileges attained from it shall be nullified. In return, the host can select a time, place, and species in the past they wish to be reborn.] [The choice is yours.] Even though I knew this would make me weaker, I had no choice but to concede. It didn’t matter anymore. I’ll gather my friends earlier this time around. I don’t need strength myself. The protagonists will protect me.