This an Au were almost everyone is a mermaid/merman/other fish creatures Kirishima lost his parents and home at a young age because humans fished them up. He lost everything except his little sister. They wanted to get their parents back, Kirishma wanted to get their parents back. The only known way to get them back...
From around the age of ten, most people naturally gained the ability to be able to talk to their soulmate through their minds. They couldn't send things like their first names through, or anything that could directly connect to their identities. However, two young boys gain their ability to speak to each other from t...