Pig Bride Series by Kook Hwa Huh, SuJin Kim

Lost in the mountains on a trip to summer camp, eight-year-old Si-Joon fears he'll never make it out alive. When a strange girl in a pig mask appears before him, he follows her to a house deep in the woods, where he is told that he must marry the pig-faced girl to atone for the sins of their ancestors. Si-Joon's not too keen on getting married, but that wedding feast looks so delicious! It's only afterward that he realizes what he's done and...wakes up... moreLost in the mountains on a trip to summer camp, eight-year-old Si-Joon fears he'll never make it out alive. When a strange girl in a pig mask appears before him, he follows her to a house deep in the woods, where he is told that he must marry the pig-faced girl to atone for the sins of their ancestors. Si-Joon's not too keen on getting married, but that wedding feast looks so delicious! It's only afterward that he realizes what he's done and...wakes up. Now in high school, Si-Joon Lee has been dreaming about the pig bride for as long as he can remember. But it's all just a dream, right? less

When Doe-Doe makes an unexpected visit to his family's mansion, a panicked Si-Joon does what he can to keep her from finding out about his pig-faced bride. Yet even as Mu-Yeon is frantically ushered from the house, Doe-Doe overhears the maids gossiping about his mysterious fiancée. Enraged by the news, Doe-Doe plots to unseat the masked country bumpkin and take her place as Si-Joon's betrothed. But an even darker plot is afoot that threatens to separate Mu-Yeon from her lord...for good.

Now that she has discovered Si-Joon's secret fiancée, Doe-Doe will stop at nothing to rip the masked girl away from Si-Joon, whom she has already claimed as her own. But Mu-Yeon's affection for Si-Joon is not something to be trifled with, especially when dark spiritual forces are involved...As memories of his past life with Mu-Yeon resurface, the time when Si-Joon will have to face the mystery of the pig bride head-on is drawing near. But will he be prepared when the critical moment comes?

As if Si-Joon wasn't already a nervous wreck over Ki-Ryong's challenge, the sneaky princess has raised the stakes, capturing Si-Joon's dearest friend! With Ji-Oh in danger, Si-Joon can't back down from the task at hand-but how on earth is he going to tell the real pig bride from the fake?! The two masked girls look exactly the same, and Ki-Ryong's powers render any line of questioning pointless... moreAs if Si-Joon wasn't already a nervous wreck over Ki-Ryong's challenge, the sneaky princess has raised the stakes, capturing Si-Joon's dearest friend! With Ji-Oh in danger, Si-Joon can't back down from the task at hand-but how on earth is he going to tell the real pig bride from the fake?! The two masked girls look exactly the same, and Ki-Ryong's powers render any line of questioning pointless. If he can't rely on his head, he'll have to trust the murmurings of his heart to guide him to Mu-Youn. The gloves (and mask!) are off in the final showdown between these bitter rivals! less

Si-Joon immediately recognizes Mu-Yeon when she unexpectedly appears at his school. Though he can't deny he's happy to see her - especially maskless - he's not thrilled about the country bumpkin enrolling at his über-elite private high school. But fitting in with her peers is the least of Mu-Yeon's worries. She's won Si-Joon's heart and secured the admiration of every boy on campus, but she has yet to win over Si-Joon's grandfather... moreSi-Joon immediately recognizes Mu-Yeon when she unexpectedly appears at his school. Though he can't deny he's happy to see her - especially maskless - he's not thrilled about the country bumpkin enrolling at his über-elite private high school. But fitting in with her peers is the least of Mu-Yeon's worries. She's won Si-Joon's heart and secured the admiration of every boy on campus, but she has yet to win over Si-Joon's grandfather. And if he doesn't approve, they can never marry! Will wedding bells ring at last in this final volume of Pig Bride ? less