Fate/stay night (2006)

S1E13 Winter Castle

Shirou drifts off to sleep and dreams of a memory from Saber's past, where she is dressed in simple ancient attire, approaching a sword embedded in stone. When Saber awakens, she realizes Shirou is missing. Concerned, she confides in Rin, and despite Archer's concerns, they set out to find him, fearing he might have been taken by an enemy. Meanwhile, Shirou awakens in Ilya's home, trapped as her captive. Ilya reveals her desire for Shirou to belong to her.