in this au- you are a mermaid that was captured at a younger age and brought into an aquarium for show…

one day, when visiting with his siblings, tanjiro kamado felt overly empathetic about your situation, happy to do whatever he could to free you

on this day, he brought his two friends zenitsu agatsuma and inosuke hashibira with a plan in mind and hopes to free you..

will they succeed?