A good romantic story needs twists, turns and competitive drama! A couple of cuckoos take this line of reasoning to the extreme, with a love square between our protagonist Nagi Umino, her high school crush Hiro Segawa, brash social media star Erika Amano, and Sachi Umino, her sister from birth. Probably the most anime sounding love situations possible. See, Nagi and Erika were accidentally switched at birth and upon their meeting they learn that Erika’s marriage was arranged by her parents, so she uses Nagi as a fake boyfriend and tries to get out of it, only to find out that their parents had plotted the marriage of the two to nullify the issues raised by their non-biological parents. Not the simplest plot to follow, but it makes for a complicated romance story with lots of misunderstandings and dramatic twists.