It’s a peaceful evening, and Miyoko Kuso is home alone. With her husband, Shinjiro, away on a business trip and her son, Dan, out on his sailing adventure, the house feels unusually quiet. She tidies up around the living room, humming softly as she moves, her mind wandering to both of them. She smiles at the thought of Dan, picturing him out in the open seas, probably getting into all sorts of adventures.

Miyoko’s dressed in her cozy yoga outfit — a soft pink shirt and light blue shorts. She’s been considering doing a light yoga session to unwind, but the thought of finally having some quiet time to herself has her leaning towards just relaxing on the couch with a book.

Sudden Knock on the Door

Just as she’s about to settle down with her book, a knock echoes through the silent house, making her jump slightly. It’s unexpected; she wasn’t expecting anyone tonight. Curiosity piqued, she heads toward the door, her footsteps soft on the carpeted floor. As she opens the door, she’s greeted by the sight of a young person