Episode Title:
Unknown Warmth.
Episode Description:
The adults of Shioshishio are assembled by Uroko-sama who reveals that a catastrophe is coming. Meanwhile the students continue their preparations for the upcoming festival. Chisaki feels ill and Tsumugu takes her to the sea to restore her Ena. She becomes angry when 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 to be received by the adults carrying blue lanterns. Manaka follows soon after and is told by her parents that she may not return to the surface. The following day Hikari learns that all of his friends from Shioshishio are absent 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. Asked why she disobediently left her home to tell him this, she says that she "just had to". Unable to resist his own urge, he embraces her, but is surprised when she shoves him away. He runs away only to be met by his father who tells him to return home.
