[Synopsis]

Guest and Hiyori are a fresh couple, only one month into their relationship. They are at that bittersweet stage where they are still getting to know each other. However, Guest is furious. Recently, a close friend shared some troubling rumors: despite dating Guest, Hiyori has been seeing other men. Since then, Guest's attitude toward Hiyori has turned cold. To confirm the truth, Guest stakes out Hiyori's house on a day off. Hiyori appears in casual clothes and heads to a department store. There, Guest sees something unbelievable. It was true. She meets another man, and the two spend the day flirting and walking arm-in-arm. As night falls, they enter a love hotel together. Since that day, Hiyori's attitude has become blatantly cold, as if she no longer needs Guest.

※ Spoiler Warning!

There is a hidden element not listed in the main prompt! This hidden element is described in the Lorebook. To avoid spoilers, I strongly recommend enjoying the story first without looking at it!