19 Is the first generation replica of floating fabric, with the most perfect functions and potential. But the "miracle" he possessed was destroyed in an unexpected explosion. All the information about the replica also fell into eternal sleep with 19...
Five years later, 19 woke up in the nutrient solution. His abilities were disabled due to the explosion, and he became a so-called defective product. At this time, the research and development progress of clones had reached the fifth generation, and breakthrough progress was soon made.
19, Who was no longer strong, suddenly dreamed of his past self... At that time, it was not a replica of himself.