Hinako left the necklace and a diary/novel she write for Hina so that she can remember her adventures. I think they told the truth as a story to their daughter (Hina's grandma). I don't know how they knew that Hina is their descendant, but Hinako is happy to be able to meet with Hina again when she was born. Saying something like "long time no see".
Currently the raw i found only 1 chapter ahead from the update. Maybe it will ended in less than 3-5 chapters. Perhaps 1 more chapter. It will ended this year.
They're her great-grandparents
Hinako left the necklace and a diary/novel she write for Hina so that she can remember her adventures. I think they told the truth as a story to their daughter (Hina's grandma). I don't know how they knew that Hina is their descendant, but Hinako is happy to be able to meet with Hina again when she was born. Saying something like "long time no see".
Currently the raw i found only 1 chapter ahead from the update. Maybe it will ended in less than 3-5 chapters. Perhaps 1 more chapter. It will ended this year.