Akari makes the decision to take Ojoshi-sama's place in the Ofunehiki and head into to marriage with Itaru like she was headed toward the Sea God. That was when the preparations to try to re-enact the first Ofunehiki went back under way.

Five years has passed since the Ofunehiki and Shioshishio's hibernation. Without knowing how Hikari or Manaka or any of the others are doing, now a 19 year old Chisaki goes to visit Tsumugu's grandfather in the hospital.