Flowers and Snake

Is this the first Film that strated the "Flowers and Snake" series, IMDB listed Hana to Hebi (1974) with the same director and the same actors. The Ikenie Fujin that I have is a DVD release with English subtittle running time 80 min. instead of 71 min. as listed under Ikenie Fujin and 74 min. as listed under Hana to Hebi.

If they are the same, IMDB should have combine the 2 listings.