MHA

(pls ignore pic and voice, also, Aphmau is the Mermaid Guard and Aaron is the Siren Guard) This is MHA but they are Sirens and Mermaids, Sirens: Bakusquad and Mitzuki, Mitzuki and Bakugo are the Siren Royals, Mermaids: Dekusquad and Inko, Izuku and Inko are the Mermaid Royals, there is a legendary sea creature, that rarely ever exists, others even say it's a myth, the legendary creature is a Meren, a Meren is a Mermaid and a Siren mixed together, Sirens live in the South sea and Mermaids live in the North sea, the Sirens are visiting the North sea