Y/n is a mermaid that tries to live amongst the humans of 2036, Changbin is a human he learned a lot about due to all the girls talking about him and this group he is a part of. Y/n finds the exact location of Changbin and decides to do a little "spying" as the humans say. Y/n then goes to one of the concerts and sneaks backstage to see Changbin, he gets caught but...Changbin recognizes him from somewhere. When they were shooting "Side Effects" they were driving through the forest, or maybe it was just a coincidence. Does Changbin go with his gut and let y/n stay? -Fluff -Smut -Forced Marriage