~ Lumpu is the tenth novel in the Parallel World Earth series. This novel was first published in 2021. This novel tells about the life of an enemy from the past, rumors that the creature has held a grudge against Miss Selena for approximately 17 years.

Then, there was the start of an adventure for Raib, Ali, and Seli to various places, such as the Moon clan, Sun clan, Star clan, Bor-O-Bdur site, Comet clan, and the Minor Comet clan.

In Lumpu's novel, they want to go on an adventure again with a flying capsule, namely ILY which has been created by the genius Ali. The goal is that they will visit the Nebula clan to save Miss Selena from Lumpu.

Then, reportedly, the Nebula clan is the gateway to the Aldebaran clan, the place where people who have power come from. The place that will start human civilization.

How did Raib, Ali, and Seli struggle to save Miss Selena? Will they be able to conquer the power of Lumpu? Actually, what happened between Miss Selena and Lumpu in the past? Read the full story, of course, in Lumpu's novel.