For Hikari last reincarnation they should made her apparence a mix of "Hikari" & "Kotori", since she will had be complete with all her precedents life's memories... Oh, what if she was reborn as Hotaru daughter? That will have be a good twist! After all Hotaru was destined to die & survived only with Hikari sacrifice, giving her a new life would have completed their story nicely!
For Hikari last reincarnation they should made her apparence a mix of "Hikari" & "Kotori", since she will had be complete with all her precedents life's memories...
Oh, what if she was reborn as Hotaru daughter? That will have be a good twist! After all Hotaru was destined to die & survived only with Hikari sacrifice, giving her a new life would have completed their story nicely!