[HP] Mermaid in the Black Lake

The mermaid who accidentally came to the HP world met a gloomy and awkward professor. When the professor had a mermaid who grew up with him, would his fate still follow the established path?To put it bluntly, this is the story of a mermaid professor who picks up girls but gets kicked down... Content label: HP Traveling through time and space Magic Moment has a soft spot┃ Search keywords: Protagonist: Xiao Ran┃ Supporting role: Severus Snape Others: HP, pro-era