Goodbye Spank, please come again!

Mom came back from Paris after a long time. It is said that Med has opened a hat shop in Tokyo. But Aiko says she doesn't want to leave this sea where her dad will come back someday. Mom tells such a serious fact to Aiko." No matter how long I wait, my dad won't come back", "Actually, the distressed Seagull was found a long time ago", "I immediately flew away and confirmed my dead dad", "I thought I would shut up until Aiko grows up someday", "There is still a father's grave on a hill with a view of the sea on the island," but when Aiko heard it, she suddenly ran out of the house. " I definitely don't want to believe it! I can't believe my dad died." Aiko is alone, crouching on the beach at night and thinking of her dad...