This feels like someone put all the worst cliches of 5 different telenovelas into a hydraulic press and made that into 6 chapters of a manga. It's certainly among the top 5 worst manga I've read, but I always come back to see how this train wreck gets worse each chapter.
Like seriously, what's next on the "bad cliches" bingo? Anyone wants to make bets? Her memories returns after she accidentally kisses the main character? Something happens between the other girl and MC, then FC gets jealous but doesn't know why and wastes several chapters pondering over the reason? Her living family members come up with some "arranged marriage" bullshit?
Make your bets, ladies and gentlemen, because I am certain of one thing, whatever crazy theories we come up with, they won't be as badly written as whatever the author will come up with.