MTL - WARNING! Tsundere President - Chapter 139 139, shocked! joy! Sad...(1)

I just left an honest review, and I was reincarnated. But not into the novel I criticized—into the world of [SSS-Class National Power Heir] .I reincarnated as Baek Seo-jun, the older brother of the original protagonist, faced discrimination, and was discarded as a sacrifice.And then I experienced hell.With the power of the final boss, I will exact revenge on everyone—whether it’s the original protagonist or the villains.[The protagonist who has gained the power of the final boss]

Lacking funds for his brother-in-law’s dowry, Cole Stone is abandoned by his cheating girlfriend.

He makes a phone call…

“Ma’am, I give up. I don’t want to work hard anymore.”

“Sure.”

$10,000,000 is credited into his account.

Betrayed, mocked, and humiliated for being poor…

Cole Stone is forced into an engagement with a billionaire CEO whose motives are unknown.

“Ma’am, I would like to issue you a refund—”

“Do you think that my dowry can be refunded so easily?”

Cole Stone is stunned speechless.

Unfair! Absolutely unfair!

How will Cole Stone fare with this mysterious and sassy fiancee of his who never takes NO for an answer?

How will he fare in the world of elites?

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.