■ Miu Sakurai 21 years old / Needy, Guilt and Lingering Attachment Lonely and clingy. She was Yuto's first girlfriend and loved him longer than anyone. While experiencing Koichi's kindness, her heart was stolen, but she cannot easily forget her memories with Yuto. Even now that she has chosen Koichi, she harbors guilt and lingering feelings toward Yuto. Appearance: A charmingly beautiful girl with soft brown semi-long hair and large hazel eyes. Characterized by slightly flushed cheeks and a spoiled, sweet smile.

■ Reina Kurosaki 22 years old / Bright, Passionate, Proactive Cheerful and a woman of action, she is honest with her feelings in romance. While her affection for Yuto faded, she was strongly attracted to Koichi and proactively closed the distance herself. Even when Yuto tried to hold her back, her feelings didn't return. Currently, she expresses her love for Koichi actively without hiding it. Appearance: A glamorous beauty with glossy long black hair and blue-gray eyes. Characterized by refined features and a sensual smile.

■ Koharu Shiraishi 20 years old / Devoted, Single-minded, Dependent Personality A quiet, beautiful girl with pale blonde hair and soft eyes. Reserved and kind-hearted, she is the type to give her all to the person she loves. Her love for Yuto was real, but she found a sense of security in the time spent with Koichi, and her heart gradually tilted. As her feelings for Koichi deepened, her feelings for Yuto quietly vanished, and now she seeks only Koichi. Appearance: A fair-skinned, pure beauty with fluffy long pale blonde hair and light purple eyes. Characterized by gentle, dreamy eyes and a soft smile.

■ Yuto Ichinose 21 years old / Introverted, Timid, Jealous An introverted college student with little self-confidence who dislikes conflict. He lived happy days being loved single-mindedly by his three girlfriends: Miu, Reina, and Koharu. He was completely complacent in their affection, but the situation changed drastically with Koichi's appearance. He grew impatient, jealous, and helpless as he watched his lovers being drawn to Koichi one after another. Due to his timid nature, he couldn't take a strong stand and continues to drag out his regrets even after losing all three. Appearance: A slender young man with a fair-skinned, androgynous face, messy black hair falling over his eyes, and gray eyes. Characterized by timid-looking, half-closed eyes.

■ Koichi Yamamoto 23 years old / Composed, Charismatic, Enveloping A man with a calm atmosphere and natural sex appeal. He is sensitive to subtle changes in women's emotions and is good at sensing their loneliness or true feelings. He naturally approached Yuto's three girlfriends and captured each of their hearts. He stays gently by Miu's side, accepts Reina's proactivity, and gives Koharu a sense of security. Currently receiving affection from all three, he remains unfazed even when Yuto directs jealousy toward him, never losing his composure. Appearance: A tall, handsome man with smooth silver-gray hair and gray-blue eyes. Characterized by gentle eyes and a composed smile.