He Lang accidentally obtained the Adventure System of the Universe, and from then on gained the ability to travel through the universe.

From The Great Ruler, Tomb of the Gods, The Legend of the Great Desolate World, Primordial Desolation, Ever Night, and The Swordsman in the Snow, he journeyed through world after world, pursuing the true meaning of the Dao. (This is just a rough outline.)

The office worker was reincarnated into another world and turned into a blue jelly slime!

Awaken forbidden magic: [Ancient Magic•Devouring Magic], analyze and copy, and evolve infinitely!

The blue slime Christian sneaked into the most passionate Fairy Tail guild and became a new member of Natsu's team!

So, the style of Fairy Tail suddenly changed:

Dragon-killing fire? Swallow it!

Ice shape? Swallow it!

Protecting a partner? Swallowed! (Haha, no.)

Follow the protagonists and experience famous scenes from the original! Watch how this ball of blue jelly devours and becomes stronger, analyzing everything, and in the passion and bond of life, become the strongest slime to protect his family!