After losing confidence in herself and quitting her job, Ema is entrusted with looking after her grandmother’s house and taking care of her beloved cat, Kuro. Determined to properly watch over the house while her grandmother is away, Ema is surprised when two adorable brothers suddenly appear through the door in the backyard. The two boys stare curiously at Ema and the house. And for good reason—they have come from another world that lies beyond the backyard door. Through her encounters with the brothers and the young men who live in the other world, Ema decides to open a café between this world and the other world. This is a heartwarming tale of the connections between one woman, one cat, and the inhabitants of another world—a story that all began with a door in the backyard.
