Kokoro works at an IT company, dedicating her life to her job. Despite her current devotion, she carries a past where she once gave up on love. Invited by her kind-hearted boss to enjoy a home-cooked meal, she becomes slightly tipsy and begins reminiscing. She confesses how she fell in love with her boyfriend's best friend while living happily together with her partner, leading her to seal away her feelings. That painful memory remains deeply etched in her heart. What will become of her relationship with her boss?