Subtitle: Star-beast (星獣 Hoshi-jū)
Keplus was summoned by a man named Kazuya Narimiya, who claimed to be a descendant of the Alien Satun. When Keplus appeared on a blue moon in the middle of the city of Tokyo, he began to destroy several light-filled buildings. However, DASH was quick on the scene and frightened the monster away by using flares.
Keplus later returned to guide Narimiya and a goaded but conflicted Mizuki Koishikawa of DASH back to planet Satun. DASH once again caught wind of Keplus' appearance and faced the monster yet again. Keplus managed to summon the portal back to planet Satun, which absorbed the light of DASH's flares. When Kaito Touma learned that Mizuki was with Narimiya inside a planetarium, he transformed into Ultraman Max to face Keplus. Max seemed to have the upper hand, but after using his Maxium Cannon only to learn that it was ineffective again the Star-beast.
However once Mizuki convinced Narimiya that the light of the Earth were also a precious light along side the lights of the stars, as even Ultraman Max believed in protecting the light of the Earth, Narimiya realized that maybe in the future the descendants of the Alien Satun would follow him and Keplus back to their him. Keplus then guided the old man through the portal back to planet Satun peacefully.
- Keplus was designed by Maruyama Hiroshi.
- Keplus' name was derived from the astronomer Johannes Kepler.
- Keplus was created by a heavily disguised Frogos suit.
- Height: 58 m
- Weight: 0 (because there is no entity)
- Origin: Space
- Weakness: Keplus being made by a gathering of stars, if a light shines that is brighter than him, he will fade away temporarily.
- Powers and Weapons
- Intangibility: Keplus is not a solid creature but is instead the formed by the gathering of stars, making him impervious to beam attacks like Ultraman Max's Maximum Cannon.
- Crescent Blast: Keplus can fire orange, crescent-shaped blasts from the horn on his head.
- Reformation: Being made of light, Keplus can reform his entire body should it be destroyed by a light-based attack.
- Door of the starry sky: Being Alien Satun's guardian beast, Keplus can summon a portal that leads back to Planet Satun.
|Ultraman Max Kaiju|
|Grangon | Lagoras | Eleking | Baby Eleking | Regilla | Alien Sran | Pigmon | Red King | Salamadon | Paragler | People of Nebula KJ-K5 (Kesam, Kerus, Kedam) | Bugdalas | Natsunomeryu | Metacisus | Antlar | Halen | Alien Zetton | Zetton | King Joe | IF | Mike, Kuro and Tama | Nina | Eraga | Alien Shamer | Alien Tarla | Gilfas | Cloudos | Gomora | Madeus | Flygler | Alien Metron | Alien Neril | Alien Godley | Unizin | Alien Pitt | Eleking II | Luganoger | Lilika | Geronga | Lagoras Evo | Moetaranga | Tiny Baltan | Dark Baltan | Hophop | Adam | Eve | Red King II | Alien Satun | Keplus | Delos people | Auto Maton | Scout Berserke | Satellite Berserke | Giga Berserke|