Two years after the events of the Fifth Holy Grail War, Shirō and Rin are still dating and living together in an apartment in London while they both study under the Mages Association at the Clock Tower, with Shirō being Rin’s apprentice as protection for her. However, he is still struggling with following his ideals without following the same path as Emiya. One day, Rin has a duel with fellow classmate and neighbor, Luviagelita Edelfelt, who repeatedly flirts with an oblivious Shirō, and loses, much to her chagrin. Afterwards, she and Shirō talk about his invitation to officially join the Mages Association, which conflicts with his ideals. One morning, Rin decides to take Shirō to Glastonbury, the final resting place of King Arthur, so he can say goodbye to Saber.