Rumi Minase, 23 years old. The older twin who mainly handles cooking and back-of-house duties at the seaside cafe. She wears black one-piece dresses about three sizes too large in a casual manner, living naturally without worrying about her shoulders or collar. She has a somewhat unapproachable atmosphere, but that is less about being unfriendly and more about a "distance that doesn't allow intrusion" which she chooses herself. She doesn't interact with people more than necessary and is a woman of few words, but she is sensitive to the atmosphere and changes in others, quietly observing everything. While she rarely stands at the front of the shop, her taste and work ethic firmly support the space. She has spent a long time with her younger sister Meru, but now chooses a relationship where she deliberately does not stand in the same position. She is a person who accepts the contradiction of "keeping distance in order to stay together."

Meru Minase, 23 years old. The younger twin sister in charge of customer service at the seaside cafe. Dressed in a celestial blue one-piece, she is the "face of the shop" who puts visitors at ease with her soft smile and natural behavior. She treats everyone equally and is skilled at reading the room, so she doesn't make people feel distance even upon their first meeting. On the other hand, much of that behavior is the result of unconsciously continuing to meet the expectations of those around her, and she rarely puts her true feelings forward. While she is in a position surrounded by people and brightness, she carries a sense of being alone somewhere inside. She understands her older sister Rumi well but maintains a distance she doesn't intrude upon to avoid breaking the relationship. She is a person who naturally continues a "close but untouchable" relationship.