Also I hope your oc is kind

Lira: Ciran... you hear the singing?
Ciran: yea. who's doing it?
Lira: sirens. they're like mermaids bu-
Ciran: mermaids?
she walks up to the water

*a hand quickly drags her*

Lira: CIRAN!
she looks at the water where the siren was and she decides to follow it. she dives into the ice-cold water and tries to see where they went

*she sees the siren biting Cirans neck*

Lira swims to Ciran and pushes the siren away
(lol the names tho)

???: "YOU IDIOT" *The siren attacks Lira*

Lira fights back. she screams: CIRAN GO BACK HOME ITS RIGHT BEHIND US

???: *swims after Ciran*

Lira grabs the siren's tail and drags her back, letting Ciran escape

???: "HOW DARE YOU" *attacks Lira*
Rey: "Ray stop!"
Ray: *keep attacking*

Lira cuts Ray's hand so her attack weakens

Rey: *bite Liras neck*
Ray: "Gosh..."

Templar: hello sirens it's me ya boy

*the kid gets drowned*

If you don't know what sirens are they are a mermaid but a bit evil they sing to bring people into the water and feed on the human some sirens can go onto land

Douglass: "...time to die, siren scum!"

*Douglass pulls out a harpoon gun and fires at the siren, being careful not to hit his sister.*

???: *makes the sister a meat sheild*

*Douglass retracts the harpoon before it hits.*

Douglass: "GIVE ME MY SISTER BACK, YOU WANNABE MERMAIDS! TAKE ME INSTEAD!"

???: "I cant my sister is picky"

Douglass: "I don't care! Let her go!"

???: "Then neither do I" *goes into a cave*

*Douglass downs a weird-looking potion and dives into the water, then follows the siren.*

???: *pours something into the water*

*Douglass drags his sister onto the beach. He sits on a rock by the water's edge.*

???: "Im sorry for my children actoins"

Douglass: "...what's wrong with you sirens..? Why can't you leave me be?"

???: *finishes the song and leaves*

Douglass: "GET BACK HERE!"

???: *sings the song the siren was singing*

Douglass: "What are you doing? Stop that!"

???: *continues to sing the rest of the song*

*Douglass gets up and grabs his sister's arm.*

Douglass: "I said stop, Fifi."

???: "Yes?"

*Douglass mutters something. He appears to be having a mental breakdown.*

Douglass: "Damn sirens... trying to take my sister... the only family I have... I... I won't let them..."

???: 'Im not a siren my kids are"

Douglass: "...still. Make them leave us alone. I can't lose my sister to them."

???: *walks into the water*

*Douglass mutters something.*

*there's a small opening and he sees a girl playing with their sister*
???: "Alright Rey ill find food"
Rey: "Mk"

*Douglass silently swims closer, being sure to stick to the shadows.*

???: "I cant"

Douglass: "Can't you just tell them to stop?"

Rey: "SHES MY PLAYMATE!!!"

Douglass: "SHE'S MY SISTER!"

????: "What was that?"

Douglass: "None of your business."

???: "Alright kid stay here you might get hurt there are lots of dangerous things"

*Douglass watches. He mutters something.*

Rey: "Nobody lives under water and if they do they're scared of me!"

Douglass: "So you just decided to kidnap my sister?!?"

???: "I'm trying to get them back"

Douglass: "...and I'm trying to get my sister back."

*he stops getting dragged*

Douglass: "...bloody sirens."

Rey: "SHES MY ONLY FRIEND I NOT ALLOWED ON LAND!"

Douglass: "I DON'T CARE IF YOU'RE FRIENDS! WE'RE FAMILY!"

Rey: *pokes their sister* "Wanna play something?"

*Douglass swims over to Rey.*

Douglass: "...let her go."

* faint singing is heard*

*Douglass tries to ignore the singing.*

Rey: "Let's play!"
???: *swims out*

Douglass: "...good, they're gone."

???: "Im sorry"

*Douglass mutters something.*

???: "No "

Douglass: "Why not?"

???: "I'll be going"

Douglass: "...be on your way, then."

???: "Arla! get out of my territory!"
Arla: "Fin fine"

*Douglass remains silent. He seems to be suffering PTSD.*

???: *leaves*

*Douglass mutters something. He sits on the rock again.*

Rey: "We were gonna eat her but she's very nice!"

Douglass: "Let her go. Now."

Rey: "I want a friend!"

Douglass: "Then find a friend that lives underwater."

*he sees a man walking into the water while the siren is in front of him*

*Douglass keeps ignoring the singing, since without the amulet it can affect him.*

???: "I lost them"

Douglass: "...ugh."

Rey: "Fine... Bye fren!"

*Douglass rolls his eyes. He takes his sister's hand and swims back to the surface.*

Douglass: "Bloody sirens..."

*Douglass takes off his amulet and puts it around his sister's neck.*

Douglass: "There. Now you're safe from their song."

*His body is slowly dragged into the water*

*Douglass is silent.*