Fate/ EXTRA - Caster is jealous

This happens on your sixth round during the third day. U need to talk to her during the beginning of round 6, that means on first day. Then, on the 3rd day, talk to her again before you go for lunch with Rin or Rani, depending on the route you choose before the 4th round. Choose the first option as it is important to get her E Matrix. The video is based on Rani's Route. I actually lol during this scene when I see Caster gets mad