Grab the female protagonist with the male protagonist

A cannon fodder has the audacity to compete with the male lead for the female lead.The same is wearing books.The fellow dressed as the hero has everything.As for her dressed as cannon fodder, it is already very difficult for her to live, but she still wants to fall in love.The person who wants to fall in love is still the master of the male protagonist's harem.Bitter before sweet, love each other.You redeem me, and I will spend my whole life as your companion.One-sentence introduction: Cannon fodder is daring and wants to compete with the male lead for the female lead