One in seven billion irregular (One-of-a-Kind Irregular) summary: You are reading One in seven billion irregular (One-of-a-Kind Irregular) manga, one of the most popular manga covering in Action, Adventure, Fantasy, Manhwa, Shounen genres, written by at MangaBuddy, a top manga site to offering for free. One in seven billion irregular (One-of-a-Kind Irregular) has 112 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add One in seven billion irregular (One-of-a-Kind Irregular) to your bookmark. Joo Seung-ho is unable to do virtual reality due to 'congenital hyperimmersion syndrome', a phenomenon of excessive sensory amplification.One day, a string of unknown colors comes down to him.It is the tester of the 4th generation VRS' device!When he was able to do virtual reality by becoming a tester, he thought for the first time.That what he caught was a rope made of gold.When he experienced Lost Sky Online', commonly referred to as the 4th generation, he realized it.The congenital hyperimmersion syndrome' was a poison in the past, but it was actually a blessing.It's time to change into a new him' that was different from his usual self.[Welcome to the world of the Lost Sky.]