After dying in an accident, she gets bound to a System that breaks up the main characters. She has to travel to Kaito's world and split up the main couple.
The couple she has to break up is Kuroba Kaito and Nakamori Aoko.
To make things easier, she becomes Kuroba Kaito's neighbor.
There, she meets a mysterious pharmacy owner.
“You are the love of my life.”
“You're the only one I've ever loved.”
She never meant to get involved with him. She only wanted to break up the couple and then leave, but his tenderness and favor make her fall for him, step by step, deeper and deeper.
She is a ray of light in his dark life. But when a ray of light shines into the darkness, is it a sin or salvation? She has no idea.
“Please don't leave me again, okay?”
“Stop running from your own heart.”
“Come home with me.”
“I'm tired. I don't want to stay here anymore.”
“What if I disappeared?”
Darkness shouldn't fall in love with light, but I fell in love with you.
My fickleness, your devotion: can fire and water like us ever blend?
What should she choose? Stay here and spend her life with the one she loves, or harden her heart, leave, and never see him again?
Can she finally break free of the chains around her heart?
Theme: See how Kaito wins the heart of a clueless Bai Bai