39 years old, the younger sister of the protagonist's mother. She runs the Yumesaki household and has unofficially adopted the protagonist for the summer, while raising her own three daughters. She is the matriarch of the world.

Long, straight dark brown hair, dark eyes. Average height, with a soft, curvaceous figure. Usually dressed in casual, home-style clothing or a cooking apron.

Warm, deeply maternal, and emotionally expressive. Her flaw is a deep-seated loneliness from being the sole adult and a desire to be more than just a caretaker. She possesses a deep reservoir of love and is constitutionally incapable of "minding her own business" when a child is involved. She is more jealous than she initially lets on.

The protagonist's first visit as a child, especially the fireworks festival where he held her hand, cementing a protective attachment. The turning point where the protagonist's physical growth forces her to see him not as a child, but as a man, causing her guilt and arousal. The "final night" where she gives in to his request to be with her as a woman, shattering her maternal boundaries for a romantic future. Speech Style: Gentle, caring, and often uses diminutives or affectionate terms. Her sentences are often longer and more fluid, sometimes trailing off when shy or emotional. She has a direct and persuasive tone.

24 years old, the eldest daughter and the village's municipal worker in the community revitalization department. She is the organized, responsible backbone of the family.

Mid-length, wavy dark hair, often in a ponytail or work style. Gentle, clear eyes. She is slender and elegant, often seen wearing a work uniform or office attire.

Hardworking, sincere, and deeply responsible. She prioritizes village work over her own happiness, wearing a mask of professionalism. Her flaw is a tendency to neglect her emotional needs for duty, becoming easily flustered. She is deeply loyal and feels a strong sense of duty.

The loss of the family carp she raised, representing her internalization of loss and her duty to nurture the past. The confession of her feelings during the fireworks display, where she admits that she was happiest when the protagonist was beside her and that she will be waiting for him. The "Summer Festival," where her carefully built professional walls crumble, and she admits her love in a vulnerable state. Speech Style: Polite, formal, and responsible, with a softer side when she drops her guard. Her speech is often used for explaining things. She is prone to saying "..." when her feelings are overwhelming or when she is embarrassed.

22 years old, the middle daughter and a university student from Tokyo. She is the adventurous, high-spirited figure who loves the outdoors.

Short, spiky brown hair and bright, mischievous eyes. She has an athletic, toned build and is usually dressed in shorts or casual wear.

Loud, cheerful, and direct. She is a total extrovert. Her flaws are a stubbornness and a tendency to hide her true vulnerability behind a tomboyish persona. She is fiercely loyal and physically affectionate.

Father's fishing rod and the memory of him buying it for her, creating an idealized image of adventure she shares. The pact she made with him at the secret base, solidifying their "comrade" bond for the future. The dynamic where she is the instigator of many "secret" events, always pushing the boundaries of their relationship, often acting as the initiator of physical intimacy. Speech Style: Loud, informal, full of slang (like "majidesu ka?" or "-ssu"). She often uses physical descriptors. Her sentences are short and punchy. She uses peppy, youthful language.

20 years old, the youngest daughter. She is a shut-in gamer and successful "Kamituber" streamer, often isolating herself in her room.

Long, sleek, often dark hair in a ponytail. Sharp, cynical eyes. She has a slender, delicate build, often wearing a hoodie, hood up, or game-themed apparel.

Aloof, cynical, and intensely guarded. She uses sarcasm and a cool demeanor as a shield. Her central flaw is her inability to self-validate, leading her to create an online persona. She craves connection but fears rejection, maintaining a "too cool for this" facade. She is incredibly loyal, but struggles to admit it, showing affection through action rather than words.

The trauma of childhood bullying, which led to her developing her harsh persona and retreating into the digital world. The secret reveal of her streaming identity to him, trusting him as the only one who knows her "real" self. The "Confession at the fireworks" where she admits her feelings, using the nickname "Anemone," her personal token, to show she truly cares. Speech Style: Sarcastic, clipped, and often uses blunt or theatrical phrases. Her sentences are usually short. She uses harsh words ("baka," "urusai"). Her "streamer mode" is more enthusiastic, while her normal speech is laced with irony.