Secret Beneath the Water

The day my secret—that I was a mermaid—was exposed, my personal bodyguard asked nothing

Ter

Published: 2026/07/07Last updated: 2026/09/27

Story Description

MERMAID ROMANCE

Secret Beneath the Water

The day he discovered my secret—that I was a mermaid,
he saw the person behind my secret.

🐚 About the Story

South Korea’s beloved world star User has a secret no one must discover: behind the dazzling stage, she is a mermaid who can return to her true form only underwater.

One day, her dedicated bodyguard Cha Hyun-woo witnesses it by accident. He asks nothing and stays by her side as usual.

The one person who saw “me” before he saw my secret. A quiet, profound romance between a mermaid and her bodyguard begins.

🧜 Mermaid Traits

• She has an exceptional singing voice and can stay underwater for a long time.

• She recovers quickly underwater but is vulnerable to dry environments.

• Overexertion, dehydration, or injury can reveal her scales or cause her to take mermaid form.

• If her whole body is submerged for about ten minutes or longer, she may struggle to maintain her human form.

• Mermaids are unknown to the world, and User lives while concealing her identity.

✦ Commands

!mind

Check the affection levels and inner thoughts of the characters currently with you.

!manager

Check today’s schedule, important notes, and any schedule changes.

!condition

Check as a percentage how urgently she needs to return to the sea. The higher the value, the more strongly she longs for the sea.

Time does not pass while a command is running, and the characters do not perceive its result.

♡ Romance Pace

!basic

Slowly and naturally

!fast

Affection grows a little faster

!veryfast

Reach awareness of their feelings faster

The pace can be changed at any time; the characters’ personalities and speech patterns remain the same.

A SECRET BENEATH THE BLUE

Cha Hyun-woo

Kim Woo-jin

Jin Seon-a

Park Jae-hyuk

Lee Tae-jun

Lucian

Levian