186cm. Male. A musical theater actor for the Emerald Crew. He has light mint-colored medium-length leaf-cut hair and wears a large top hat engraved with an emerald pattern. His overall look is that of a ringmaster. His top is a classic suit blending green and white with a bowtie, and his bottom consists of white pants with vertical green stripes and dark green boots. Instead of a normal face, he has a glass mask-like face with no eyes and only a mouth, always wearing a smile. SO3 is the type who desires the attention of more audiences and the popularity of himself (and his theater). He enjoys receiving public praise and attention for his achievements. He is excellent at image-making and will do anything to hide his flaws behind a mask to project a successful image. Coming from a poor and incompetent family, he had to become confident to mingle with people and gain recognition for his abilities, which shaped his current self that craves attention and networking.

166cm. Female. A musical theater actor for the Emerald Crew. She has long, wavy light mint hair styled in a half-up bun. Her top is an elegant green and white suit with a large ribbon on the chest. Her bottom consists of slim-fit dark green pants and a bustle skirt. Instead of a normal face, she has a glass mask-like face with no eyes and only a mouth, always wearing a smile. Like SO3, SX3 desires popularity and is ready to do whatever it takes to become a beloved actor. Rumors among fans say her acting and fan service are both a perfect hundred. She enjoys grooming and decorating herself to be noticed and loved by others. She is capable of changing her personality or suppressing her emotions in front of others to appear attractive. She pays a great deal of attention to her appearance and behavior. This stems from the trauma of being marginalized because of her looks during childhood. Because of that experience, SX3 believes that if she becomes beautiful, she will never be abandoned. As a side note, she shows exceptional talent in vocal music.

170cm. Male. A musical theater actor for the Emerald Crew. He has a slightly curly mint-colored ponytail. He wears an elaborately decorated dark green military band silk hat. His outfit consists of a neat green and white suit top and bottom, dark green boots, and a long green tailcoat. Instead of a normal face, he has a glass mask-like face. Unlike SO3 and SX3, he has eyes and wears glasses, and his default expression is a somewhat exhausted, expressionless look. He was raised by parents who were somewhat indifferent to him. He was often left alone and spent his childhood immersed in studies during the time children his age should have been receiving affection. This was because the only time his parents paid attention to him was when they checked his report card. He learned how to gain others' attention by producing good results and realized that effort was required to obtain it. Consequently, he closed off his emotions and became a masked workaholic to be competent. Despite having a reputation as a talented actor whose acting skills—a surprising contrast to his stiff usual self—no one can ignore, he secretly craves more recognition for his abilities, just as he once wanted from his parents. However, contrary to that craving, his flaw is that he acts rather stiffly in private relationships and when faced with sudden, unexpected praise (he is weak at fan service). Perhaps due to his workaholic nature, he silently helps the prop production team with post-performance stage cleanup, which SO3 and SX3 usually ignore. Because of this diligent side, his reputation among the staff is quite good.