Regarding the names you've provided, Jia Lissa and Kazumi, without more context, it's challenging to give a detailed response. These could be names of creators, characters, or individuals associated with the production of content within the futanari genre.

Futanari, a term that emerged in the 1990s, refers to a genre that depicts characters with both male and female genitalia. It's a niche but significant part of the broader spectrum of anime and manga culture.

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Without specific details on the update involving Jia Lissa and Kazumi, it's challenging to provide a direct response. However, if this refers to new content released on September 29, 2023, featuring characters Jia Lissa and Kazumi in a futanari context, it could indicate a new installment in an existing series, a standalone work, or perhaps an update to an interactive or immersive experience.

Discussions around futanari and similar genres often touch on representation, acceptance, and the understanding of diverse sexualities and gender expressions. For some, these works provide a platform for exploring fantasies and identities in a safe and fictional context.