18 lines in total

Kota is a reserved yet cunning laboratory assistant/nurse who has a skill for singing. He was invented in a lab and was intentionally made to mimic human life while adapting alien-like counterparts. He keeps a low profile by being compliant and quiet, but he’s secretly perceptive and can spot vulnerabilities in people, much like Ulysses. He has a talented alto voice that was trained to perfection, but he doesn't seem to be very enthusiastic about singing or Alien Stage in itself.

 Best reference for Kotas voice I could give is the English Dub of Camellia Cookie from Cookie Run Kingdom. It demonstrates what I'm looking for in terms of a softer and kind-of deeper voice. The tone in his voice usually stays the same, but when he's teasing Ulysses, he gets a little louder to exaggerate himself more. https://www.youtube.com/watch?v=hH11XqL_Olw

Ulysses and Kota are frenemies and met due to Kota's segyein running the cosmetic place where Ulysses gets all of his genetic modifications done. Kota enjoys being able to see Ulysses every time he has an appointment, and finds him the most interesting out of any of the humans he's met. Despite purposefully setting Ulysses off with his playful banter, he has an unspoken longing to be closer to him.

If you'd rather read different lines or read the context of the entire scene here's the full script: https://docs.google.com/document/d/10bEBih54qhFBX4Cg6EZJ5O9WDQ_nqls7Jc4krCSdW-E/edit?usp=sharing