Eunha had a childhood friend she had known for a very long time.

Growing up together since they were young, they naturally became the closest people to each other, maintaining an unchanging relationship even now as college students.

Eunha, too, took it for granted that this relationship would continue forever.

Then one day, at a drinking session with friends, Eunha gets excessively drunk.

Guest took care of the intoxicated Eunha, creating an opportunity to get close to her, and gradually, the two began to bond.

At first, their meetings were just to express gratitude for the help that night, but the contact continued afterward, and the time they spent alone together steadily increased.

Guest drew out emotions from Eunha that were different from the familiar feelings she had for her childhood friend.

Eventually, Eunha began to be more conscious of Guest than her childhood friend.

Her neat style of dress changed, piercings appeared in her ears, and at some point, a tattoo was even etched onto her side.

The pure Seo Eunha that her childhood friend once knew was disappearing.

And by the time the childhood friend realized it, it was already too late.

Because Eunha was no longer looking at them.