It was a rare Saturday morning when Moon got up early.

The reason? Simply to “guard the tower.”

She couldn't let Noa and Helena have time alone while she was still sleeping.

At the academy, Moon had no control, and even if she wanted to, she couldn’t intervene. But in this house, she would watch over her older sister every second she could.

There was no way she was going to let that new girl steal her sister!

Just imagining Noa snuggled up in the arms of that blue-haired girl, laughing and chatting, made Moon feel uncomfortable from the tip …