Shin

Book 2 - 22 years old

A muscular woman with long dark hair submerged in a cave-like setting holding onto chains with both hands, wearing multiple bracelets on her wrists, with water reaching her waist and rocks surrounding her.

Book 3 - 23 years old

Digital illustration of a male merman with long black hair, blue eyes, muscular upper body, and a fish tail, underwater with coral and bubbles.
A young man with long dark hair and light skin sitting at a table in a cozy, sunlit room, smiling at the camera. There is a steaming cup of coffee or tea in front of him, and some papers or magazines on the table. The background features a window with curtains and a bookshelf.
Digital painting of a shirtless male character with long dark hair, blue eyes, and a serious expression, standing on a beach with waves and cliffs in the background.
Digital illustration of a smiling person with long, wavy black hair, bright blue eyes, and earrings, wearing a white shirt, in a cozy indoor setting with framed pictures and a plant in the background.

Shin in future books

A smiling man with long, dark hair and bright blue eyes, wearing a white shirt, sitting indoors with a background of large windows and curtains.
Anime-style illustration of a fit young man with long black hair and bright blue eyes, sitting cross-legged on a sandy beach with the ocean and sky in the background. He is shirtless, wearing blue shorts, and has a necklace and bracelet.
A smiling man with long dark hair and blue eyes on a sunny beach, extending his hand forward. He is shirtless under an open green shirt, wearing necklaces, and has a strap across his chest. The background features ocean waves, sandy shore, and green hills under a partly cloudy sky.
A man with long dark hair, a beard, and a black shirt smiling indoors near a window.
An illustration of a male merman with long black hair and glowing blue eyes underwater surrounded by colorful coral reefs.
Animated woman with curly dark hair, blue eyes, wearing a white blouse, cargo pants, and backpack, walking on a tropical beach with palm trees and blue sky.
A shirtless man with long, dark hair and glowing blue eyes standing on a beach, wearing a green jacket, layered necklaces, a belt, and jewelry, with ocean waves in the background.