Ultraman (1966): Season 35, Episode 4

35 - 4: Thus Fought Emi

The molluscan kaiju, Leviera suddenly appeared three months ago. The only way to deal with it was to temporarily drive it away with a new antimicrobial called "FK1", which was developed by the major chemical company, Novaio. However, there seems to be an inexplicable connection between the mysterious kaiju and Novaio. In order to find the truth, Emi goes undercover to investigate the company's president.