S-Rank Ex Left, I Got an SSS-Rank Girl

In the Martial Realm hit by beasts, only those awakened warriors can survive. Weapon Spirits are humanity's ultimate power. But they can only reach their full potential when contracted to a partner. Jasper, an F-Rank loser dumped by his S-Rank ex-girlfriend, has unlocked the God-Tier Evolution System. Now he commands strong and talented ladies of every race. The young man they cast aside now controls the apocalypse!