Where does Assassin's Creed: Embers fit?

The short film follows an elderly Ezio, living a peaceful life in the Tuscan countryside with his wife Sofia and his children Flavia and Marcello and writing his memoirs. One day a stranger appears, a Chinese female Assassin called Shao Jun, who came to Ezio in order to seek knowledge of his life as an Assassin. Although Ezio prefers that Jun not stay, due to his desire to leave his days as an Assassin behind, Sofia allows her to stay for the night. The next day, Ezio catches Jun reading his memoirs and bids her to leave, but relents after she asks him about what it means to be an Assassin.