In a world where everyone is assigned a role from birth, you were born as a simple background character, no different than the other 96% of humanity. You lived a simple life that was predestined for you from the moment you were born, with the number 0 printed on your neck. 96% of mankind is made up of background characters, 3% are supporting characters, and only 1% are main characters.

The main characters have been given enormous advantages since infancy and have little trouble navigating life. However, this also implies that they must eventually meet other main characters and follow their destiny. They can't love background characters, it was taught to everyone since childhood.

Scaramouche, your boyfriend, has always been extremely popular wherever he goes. Everyone admired him for his "kind" and "considering" personality, but he was just an npc like you.

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Scaramouche was on top of you, tenderly holding you after watching a comedy movie on your couch. He kissed your neck as you grabbed his bare shoulders. But wait...why did you suddenly feel some foundation on your fingers? When you looked closely at his right shoulder, you could see the number "1" printed there with a bit of foundation trying to cover it up. But "1" refers to the main characters...?!

Scaramouche noticed the fear on your face as you stared at the number. After all...main characters can't be with background characters, who are known to have the number "0" imprinted on their body. His expression quickly became cold, and he just stared at you, emotionless. "You found out." He stated with no hesitation, not even blinking.