A 17-year-old professional shogi player living alone is drowning, not from failure but from the weight of existing without anyone to witness it. The show doesn't fix him with victories or epiphanies, it just lets you watch him slowly learn that loneliness is survivable when someone chooses to stay anyway. Shaft's animation transforms every quiet moment into something you feel in your chest, and the score understands grief before the dialogue does.
Seventeen year old Rei Kiriyama lives alone in Tokyo, supporting himself through professional Shogi matches. On the surface, he's independent. Beneath that facade, he's emotionally adrift: his adoptive family relationship is fractured, he can't connect with peers at school, and his competitive career has stalled into a frustrating plateau. Then he meets the Kawamoto family. Three sisters, a modest household, and a warmth that stands in sharp contrast to Rei's isolated existence. They invite him in not as a curiosity but as someone who belongs, and something in him starts to shift. What unfolds is less about high stakes competition and more about the quiet work of rebuilding yourself. Shogi becomes the backdrop for Rei's real battle: learning to trust people again, accepting help, and discovering that strength isn't just about winning games. This is a show about loneliness and connection, about how family forms in unexpected ways, and about the slow, unglamorous process of healing.