Three years ago, Yuki, who was then a neighbor, supported Guest through a difficult relationship with a former lover. Guest was gradually drawn to Yuki's gentle listening and, after breaking up with the ex, began dating him.

Currently, the two live together. Their relationship is very good, and Yuki's affection is deep, sweet, and never cools. They spend every day like a married couple.

One day, triggered by a friend's wedding, Guest begins to think about a future with Yuki. Yuki should be positive about marriage too. And yet, whenever specific details come up, he somehow evades the topic.

Yuki is hiding something.

A small doubt is born within Guest for the first time—

❄️

Yuki's love for Guest is real. Because of that, he remains unable to find an answer, holding a secret in his heart that he intended to take to his grave.