The first arc will destroy you, and nothing else in anime hits that specific kind of grief, watching something learn what love is only to lose it forever. Fushi doesn't grow stronger through loss; he grows sadder, and the show refuses to let that sadness mean anything beyond itself. Later episodes falter badly, trading emotional precision for plot, but those early chapters sit in your chest long after they end.
An immortal entity arrives on Earth with a singular curse: it can shapeshift into anything it touches and resurrect after death. Beginning as formless matter, it gradually gains consciousness through a wolf's body before taking human form as a boy named Fushi. Alone and confused, Fushi stumbles through existence with the mind of an infant trapped in an increasingly complex world. What transforms Fushi from a blank slate into something approaching human is connection. Each person he meets leaves an imprint on his soul, teaching him language, emotion, and what it means to care about someone. Yet this awakening comes with devastating cost. A mysterious force called Nokker hunts him relentlessly, and everyone Fushi loves becomes a target. He watches those closest to him suffer and die while his curse denies him the mercy of sharing their fate. Fushi's journey becomes a meditation on what makes life worth living when you cannot truly die. Is immortality a gift or a prison? Can love exist without the possibility of loss? The series balances wonder and heartbreak as Fushi accumulates memories across centuries, forever changed by people he cannot hold onto.