Cosplay on Kastoria by Machi in a bikini

Machi presents a cosplay portrayal of Castorice from Honkai: Star Rail. The woman wears a bikini-style costume with gloves and a choker, while a necklace is visible at the neck. Her purple hair, purple eyes, makeup, and elf ears define the character styling. Flowers are arranged around the costume and appear as decorative elements near her. The visible accessories include the choker, necklace, gloves, and floral details alongside the purple character design. She holds a posed stance for the portrait, keeping the costume, accessories, and elf features visible.