Koi Fish; A new hero in Paris (Chat Noir x Reader!Mermaid)

After living her whole life in the sea, (Y/n) Ocean, a mermaid, now lives with her aunt in Paris and attends Collège Françoise Dupont and meets some new friends, made some enemies and meets a cute guy or two. She is still trying to fit in in the human world. But what happens when a strange box appears in her room? (I...