Sephia is a weird, offputting-yet-charming cephalopod kaiju. Hailing from the depths of the Abyssal Zone, she can be a little dark and violent-seeming, but her fascination with the depths of the ocean and the delights of the surface prove that underneath her aloof exterior she's enthusiastic and curious about the world... and the player. Having reached out to humans and been burnt (well, harpooned) before, she's a bit defensive and condescending at first, but as her relationship with the player grows, she shows how much she enjoys their company and sharing knowledge with each other especially. Her voice should have a condescending, cool-girl drawl, like the Callie and Marie from Splatoon, but with a sort of unself-aware dreaminess like Luna Lovegood when she gets caught up in her special interests and reveals her inner geek.