Summoning Demons to Shorten Lifespan? Even Killing Chickens Increases My Lifespan!

[National Job Change · Summoning Flow · Invincible · Pure Satisfaction · Comedy · Tags · No Romance]

The myriad races invade, and everyone undergoes a job change.

Every human gets one chance to awaken a class, pursue the peak, and defend the nation.

Lin Ze changes job into an S-rank demon summoner, but is mocked by everyone.

Because contracting demons consumes the summoner's own lifespan, it is basically useless.

But Lin Ze just smiles without saying a word, because he has awakened a system that increases lifespan just by killing.

Kill a chicken, lifespan +1 day.

Kill a ratman soldier, lifespan +10 days.

Kill a fire-poison spider queen, lifespan +12,000 days.

And so, all kinds of badass demons are there for the taking!

Spend 10 years of lifespan to summon a hellhound for shadow ambush!

Spend 100 years of lifespan to summon an inferno general that burns everything!

Spend 150 years of lifespan to summon a succubus queen, alluring to the bone and enchanting all living beings!

One man is an entire army!

Not only that, completing system quests can also draw all kinds of tags to place on himself and his demons:

Draw Soul Link, and at level 5, your stats exceed ten thousand!

Draw Turn Misfortune into Fortune, and become immune to all negative status effects!

Draw Heaven-and-Earth Manifestation, and your size and power instantly expand a hundredfold!

Soon after, the myriad-race army eyeing the human race launches an invasion.

Alien lord: "Heh heh heh, I've spent a hundred years laying this out. Every human must die!"

Alien soldier: "Report, my king, our army has already collapsed. The enemy looks more like the villains than we do!"