Yuki Suzuki is a scientist from the Mainland who along with her two younger twin sisters Yui and Yuna head to Griffin Rock to pay a visit to Yuki's boyfriend Graham Burns who is a part of the Griffin Rock Rescue Team, " A real family of heroes " people of the Mainland say to the sisters and they believe it. Yuki Suzuki gets odd glances all the time on her home island and its not because she's mean or famous its because she has unspeakable trauma of her parents getting killed right in front of her when she was only 12 years old and her sisters 2 and they want to live with their grandparents, The younger Suzuki sisters have no clue what really happened to their parents only that in their words " Grandma and Grandpa say they couldn't take care of us" which Graham knew was a complete lie that only made the trauma worse for his girlfriend. Well Yuki take down her walls and let the Burns family in or well she keep her secret to keep her sisters safe.