Star-crossed Lovers

Star-crossed by...the war between North and South

Star-crossed by...being from different times

Star-crossed by...lots of bad stuff people did in the past STILL making life hard for you

Star-crossed by...fate - and the fact that he wants to eat her for dinner

Star-crossed by...um he's alive and she's not

Star-crossed by...alternate realities

Star-crossed by...him being a comic book character

Star-crossed by...her being a mermaid - and people in the past who hated mermaids

Star-crossed by...a modern-day teenager ending up in the past

Star-crossed by...one of them having to die for the other to live

Star-crossed by...literal stars

Star-crossed by...those twisted old fogeys up in the heavens

Star-crossed by...well, mostly by their own inability to communicate, but also the fact that he's now a teenager

Star-crossed by...him being from the past

Star-crossed by...the ever-present threat of war between North and South

Star-crossed by...his elimination every time he develops attachment to humans

Star-crossed by...one of them being the king, and also a man (ostensibly)

Star-crossed by...him being from 300 years ago

Star-crossed by...take your pick: soulshifter/mage, master/pupil, owner/servant

Star-crossed by...her being dead/in someone else's body/having amnesia

Star-crossed by...a severe allergy to human contact - but mostly lots and lots of lies

Star-crossed by...some murder accusations, being disguised as a man, and some emotional constipation

Star-crossed by...different eras of history and lack of adequate medical care

Star-crossed by...a timeline that no one but you remembers

Star-crossed by...gumihos needing to feed of human energy

Star-crossed by...class in the past and most a girlfriend who refuses to be broken up with in the present

Star-crossed by...200 years, twisted fates, and heart ailments

Star-crossed by...archaic Joseon societal expectations

Star-crossed by...a contract marriage to his brother

Star-crossed by...fate (and god), obviously

Star-crossed by...him choosing to save her no matter what timeline they're in