Gigantic Gas

Gigantic Gas is an item which Nemesis found after defeating smugglers for her leisure. This gus doesn't have a specific form, only seems to be a deformed case with an eye, and at upper part, a beak for spraying. It converts everything that is sprayed into gigantic temporaily. This gas makes organisms some ten times larger temporarily. But for earthlings, this spray has an opposing effect when it increases the size, it also rejuvenates the age until the age of baby.

Background
This gas was developed during the Second Galactic War in a kingdom. When this gas was released, it increased the size of any form of life temporarily, and favourably it turned dozens of people in gigantic. Therefore, it grew the army of gigantic soldiers, and they only lasted three years, during their threat against the galaxy until they were ruined by Deviluke,

Plot
It debuts in the chapter 51 of To Love-Ru Darkness, Nemesis sprays it to Rito, and she talks him that she had took out this gas to smugglers and she wanted to prove it with him, but when it makes Rito increase the effect, the effect completely gets opposing and this gas makes him rejuvenated, and turned into a baby.