In Which The Second Male Lead Wins

I am the Second Male Lead of a generic villainess story, Adam Levin, who is doomed to not have his undying love for the reincarnated villainess, Sofia, to be reciprocated. In the book, i acted as the loyal big brotherly type who is possessive and although i've saved her countless of times, my love was not reciprocated. Then i had no choice but to wish happiness for her marriage with the kingdom's First Prince. Not long after i was sent to the frontline of a war between our kingdom and the neighboring empire.

That's how it's supposed to be.

But I won't let that happen, after all i'm still too young and to be sent to a war while being heartbroken is just too cruel!

If I can't win in this story then i have to make one myself in which i, the Second Male Lead, wins.