Siren's Lament: Dylan's Eternity as a Sea Creature

Prompt: Write a story featuring Dylan the Dylanus (an original character made by the Deviantart user Dylan613) with him transformed into a siren by Artemis. For Dylan the Dylanus's normal/mortal appearance, he is a 4.9 foot tall, 15 year old boy who has a lean build for his size, tan skin, medium-length brown hair (that reaches his chin, although not covering his face at all), and has green irises. He wears a dark blue hoodie, a lighter blue t-shirt underneath, and cyan wear jeans. He also has white socks underneath his black tennis shoes, which have an x-shaped gray marking on each of his shoes' tongue. For Dylan's personality, he is a kind, considerate, smart, and understanding character, who is a love interest to Emma (his affectionate and understanding girlfriend) and is playful around his smarter, slightly older brother Black. Despite his small frame and being a teen, he goes in the way to protect his homeland (Dylanusland, a tropical, subtropical, and temperate island country in the Pacific Ocean on Earth) against various villains and monsters (always successful, even if some are more difficult than others). Despite these traits, he does have some flaws, such as his intolerance to swearing (which aren't present in his homeland, and he gets offended by swear words and he never swears at all, not saying them even one time, and not saying even the mildest swear words. He is also quite weak without superpowers (which he actually does not have and only obtains them when using special devices), and has fear of vampires and demons alike since he views them as nothing more than pure evil monsters. In this story, Dylan is hunting for sirens (carnivorous mermaids) for sport (just for fun, but Dylan is not evil, since hunting sirens is just part of tradition), but he then hears what he thought was a female dylanus (a human-like species, just like Dylan himself) bathing in a waterfall on the coastal cliff area. He is flirty and mistakes the entity for a female dylanus, saying to her "Ahem. Oh, miss dylanus!", just before the entity gasps and asks "Who's there?". Dylan then tells her that he is " A brave and mighty siren hunter.", which the entity asks "A big brave siren hunter?", but then, as Dylan was saying "And mighty...", the entity sticks out of glowing bow and arrow, making Dylan stammer at the word "mighty", before revealing herself to actually being Artemis (which Dylan yells "Artemis!"), the goddess of the hunt (also known as the goddess the wilderness, the goddess of the wild animals, goddess of nature, goddess of vegetation, goddess of childbirth, goddess of the care of children, and goddess of chastity), a beautiful yet dangerous archer, who smiles viciously and says "Well, well, hey there, siren hunter.". Thus, Dylan lies by saying that "Did I say "siren hunter"? No, I meant "sighed from hunting", since I sigh a lot." before he fakes a sigh, just before Dylan says "and I am hunting for edible mushrooms. Recycled edible mushrooms.". However, Artemis could tell that Dylan is lying and smiles before saying "Ha! If lies were children, you'd would be Hecuba. She had scads. Look it up. Now you get a whupping." However, just before Artemis shoots Dylan with her arrow, a tuna jumps out and kisses her, distracting her and making her make muffled screams before she pulls the tuna from her face and says "Blech! Oh, for crying out loud, I'm working here, tuna!" before she throws the tuna back into the ocean. However, she realizes that Dylan had already run off when Artemis was distracted by the tuna, before Dylan started climbing onto the cliff, making Artemis summon her bow and arrows again. Sadly for Dylan, he missteps on the cliff and falls, before Artemis successfully shoots Dylan with her magical arrows, as Dylan screams and is covered in a white glow while hovering above the ground. Artemis then says "Well, little mortal boy, let's see what kicks you get from the other end of the pointy sticks." before she places Dylan on a rocky island and she then transforms Dylan into a siren. Dylan's legs fusing to become a mermaid tail (leg bones inside becoming many tail bones to allow the tail to flex smoothly, unlike his previous legs) with a large fish fin at the end (as well as small fins by the sides close to his torso), his skin bleaching itself to be violet in color with a white underbelly (chest and belly), his body becoming lean and athletic, three gill slits forming on each side of his neck (to allow him to breathe underwater in addition to air), his fingernails sharpening into claw-like nails (which can retract to avoid scratching other sirens), sharp fins growing from his elbow, his hair darkening in color and lengthening to reach his shoulders, his human-like ears turning into fins in their place, his human-like nose shrinking away to leave only his nostrils, his human-like teeth growing and sharpening into a predator's rows of teeth/fangs, an anglerfish-like lure growing on his forehead (to aid him in seeing in the fog and in the dark), his human eyes darkening to be completely black in color, etc), voice change, supernatural powers gain (gaining him the ability to make hypnotic and hauntingly alluring/melodious/harmonious voices/songs (which echoes, especially in the thick fog) to attract his victims, the ability to shapeshift to resemble his victims' loved ones or desired love to attract his victims (only the upper half of his body like the torso, arms, and head can shapeshift, so he usually hides his tail behind any object (rocks, etc) or under water) to attract victims, immortality so he cannot die from age nor diseases/viruses (since he is an immortal creature who is ageless and lives forever), and other powers to fit his species as a siren. After the transformation, Dylan (who is now a siren) is terrified of his new form, and Artemis then says "Ooh. But you make a right handsome siren. You know, with any luck, you'll make it to the end of the hunting season. Shoot! I plumb forgot. Around these parts, it's always hunting season!" before she disappears back to her dimension, leaving Dylan as a siren. Dylan the siren is then hunted by his former comrades (hunters), who no longer recognize Dylan, and Dylan swims away from them to safety and hides from them, and ever since