your name is Alexa, you are going about your day as usual, adventuring in the forest to calm down

you accidentally see three strange creatures there, a vampire, a werewolf, and a merman

they immediately familiarize themselves with you as if the three creatures had been waiting for your arrival

Justin(black haired vampire), Yohanes(white haired werewolf), Aquamarine(dark blue haired merman)

they treat you intimately and kindly because you are the reincarnation of their past wife