The adults of Shioshishio are assembled by Uroko who reveals that a catastrophe is coming. Meanwhile the students continue their preparations for the upcoming festival when Chisaki feels ill and Tsumugu takes her to the sea to restore her Ena. In the occasion, Tsumugu asks her if she has given up on Hikari and she decides to go home instead. Kaname accompanies her and they arrive at the village just to be recieved by the adults carrying blue lanterns. Manaka follows soon after and when she arrives home, she is infomed that from then on it is forbidden to return to the surface. In the next day Hikari learns that all of his friends from Shioshishio are abscent from school and he returns to the village to find out why. Manaka informs him that they are forbidden to leave the village as a calamity is impending and expresses her will to support him. Despite knowing that Manaka only views him as a friend, Hikari does not resist the urge to embrace her and he flees after a surprised Manaka shoves him away.