I am not really familiar with the Ultraman lore. I know he's a guy who can grow to the size of a monster and often fights against kaijus. There is some sort of Kaiju Defense Force that also fights kaijus. Somehow, this film becomes the story of Ultraman defending a kaiju baby from the KDF, which is ironic, but kind of fun.

However, the true strength (and weakness) of the movie is not in the monster battles, but in the story of a young man trying to juggle career, family, child raising and personal life at the same time. Did I want this in a Kaiju movie? Maybe not, but at the same time it was what gave the characters depth and the story emotional power.

Also, this is a kiddie film, designed to appeal to small children and their parents who, probably, try to juggle a lot of things too, so technically it was good product.