4. O-O · ContactContact · last panel of the episode
An internship, a mission, a game of chess?
「一期一会」 ICHI-GO ICHI-E · every encounter is unique

Game notation
1. e4 e5: you open, I accept.
2. Nf3 Nc6: we develop the project.
3. Bc4 Bc5: each shows their vision.
4. O-O: we agree, safely castled.