Super fast delivery
Super fast delivery
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Increase your Inversion Reinforcement level in The First Descendant fast and without any problems
From Season 1 onward, there is a new system that grants additional buffs to Descendants who finished the campaign and obtained the IRD. This device allows you to get significant buffs from the selected category, enhancing your Descendant’s power for the season’s duration. It also takes a while to regain the max level of your IRD, which leaves you without these buffs you were used to in the previous season. Our pros can level it back up for you easily!
Make an order at Kingboost, and we’ll increase your Inversion Reinforcement level for you!
50,000+ players trust us. That number isn't luck—it's the result of years of consistent delivery, professional boosters and a support team that cares about your experience.
Here's what makes us the best at what we do:
Super fast delivery
5/5 all was perfect
Simple run set up and coast through the run.
Super fast and Communication is excellent
Great service! Recommended to everyone. Was quick and efficient
Great service
Smooth and quick Runs!
Very good service
Contacted support once order was placed and my appointment was made almost immediately. Customer service was great as always super responsive even checking in to make sure the order went through as expected. 10/10 would use again
Customer service is super helpful, fast to response just about all hours. Service was great and fast well. Super affordable as well compared to other websites that offer similar service. Definitely getting fair service!
Another great and smooth experience
Fast and smooth ..Perfect
I order a farming order and it was super quick and easy. The booster who did it was "Tarek" and it was an outstanding service. Would recommend buying.
exactly as advertised. good service, good communication, excellent service
The assurance of pushing keys with a team of truly good players
good service as always
As always fast efficient and best prices around. I would highly recommend.
Incredibly fast completion of the order. The boosters know exactly what they are doing. Superb!
Fast and efficient run. No issues.
Nice and quick service
$3.29