Ultraman

Using a new weapon developed by the NDF, humanity achieves its first solo victory against a kaiju! However, the kaiju, which was clearly defeated and dead, suddenly reanimates! The KSCT and the NDF coordinate a defense strategy, but the situation rapidly worsens. To discover the weakness of this "immortal" kaiju, Sorato and Sayuki fly to the permafrost of the North! 

Kosei challenges Sorato to a fight as part of his battle training with Rekiness, Trigaron, and Valgeness. But their training ground deep in the mountains turns out to be the Alien Barossa Zahgon's lair and he covets their treasure... the Meteokaiju?! Zahgon captures Sorato and Kosei, then a mysterious girl named Gilda appears in front of Kosei.

The best kind of creation, where you go all out to make it awesome? Eiichi, a boy obsessed with making Tokusatsu works, stumbles upon a mysterious red crystal while taking pictures of a kaiju that suddenly appears in Ohito City. This crystal is an unknown substance that fell from space, capable of absorbing people's negative emotions and converting them into energy!