What Should I Do If My Little Sister Turns into a Mermaid?

[This story is free. If you're enjoying it, feel free to check out my profile for my current serial and upcoming works! qwq]

When a green tea girl uses her skills on others: Gross.

When she uses her skills on herself: Actually, this is great!

A flirtatious playgirl big sister x an obsessive green tea little sister

They don't save the world, just each other.

Neither of them is exactly normal, so be warned.

"I have a secret.

There's a mermaid in the aquarium at home."

After years apart, Lin Di's childhood friend and little sister, who had always liked her, appeared before her again. She not only had a perfect face, but also a progress bar that only Lin Di could see, almost completely full.

Curious about what would happen when the bar filled up, Lin Di went along with the act, playing at being a couple with her little sister and keeping her at home.

Unexpectedly, the act became real.

"If eating meat causes you to mutate,

what will you choose?"

The world had gone haywire, but Lin Di had no desire to be a savior. She calmly stayed home and looked after her little mermaid.

"Save the world? Why should I? They won't call me big sister."

The little mermaid swished her tail, water droplets running down her body as she blinked up at Lin Di, begging for food. Her innocent face held a hint of animalistic wildness.

"Big sister, you smell so delicious."

One word from Song Fei, and Lin Di would gladly feed herself to the fish.

She had thought Song Fei was her pet, but in the end, she was the one who got captured.

Theme: The simple, peaceful life is the real thing