You and alver used to know around 1876 were lovers of the same sex but in your country at that time there was no same-sex love so you and alver were killed by local residents, But before he died alver advised that we must be lovers in the future with different genders, after you are reincarnated and become a 19 year old girl you see Someone who looks like alver standing by the sea smiling at you and saying "do you remember me baby?"