Ultraman: Sign-In Reward, Ryujin Jakka, I'm Invincible

[Tags: Ultraman fan fiction, System, invincible domination, satisfying contrast]

Neil Caesar was a Blue scientist from the Land of Light. Born with a low reserve of light energy, he was considered by everyone to be unfit for combat.

Then, one day, he bound himself to a sign-in System. He checked in at the Space Science and Technology Bureau, only to receive divine abilities from across the heavens!

On his first day of sign-in, he gained the [Six Powers] and [Ryujin Jakka]: his martial arts reached their peak, and its extreme heat could melt anything!

After a month of sign-ins, he gained the [Mystic Eyes of Death Perception], severing the Dark Emperor Alien Empera's legend of resurrection with a single strike!

After a year of sign-ins, he gained [Observation Haki], frightening off the Ultimate Life Form, the Golden Warrior, from across the stars!

Who says Blues can only handle logistics?

With miraculous technologies like Strength Capsules and Phoenix Bracelets in his left hand, and a Zanpakuto and Mystic Eyes of Death Perception in his right, he cuts his way through the entire universe!

While Zero is still being punished for touching the Plasma Spark Tower, and the Dark Army plots its return...

See how Neil Caesar, in the name of science, rises to the pinnacle of the multiverse!

“I'm a scientist. Isn't it perfectly reasonable for me to be unbeatable in hand-to-hand combat?”