Sweet X Trouble
Author: Tamlin
Artist: Kim Soo Hwa
Yuri Nam is a protagonist. He has a girlfriend Lizzie Springfield (Ko: 리지 스프링필드) who is a transfer student from United Kingdom (Ko: 영국). Lizzie's father changed into a cute girl because of medicine. And he wanted to break up the couple. But Yuri refused it. So her dad tried to kill Yuri. But it failed. And then her daddy used aphrodisiac to kill Yuri but it failed so he and Yuri fondled and groped each other and almost had sex. It didn't look awkward because Lizzie's father's appearance looks like a cute girl!
Korean and Japanese name systems were adopted from Chinese name system. European name system order is that a given name is first and a surname is last. But Chinese name system order is that a family name is first and a birth name is last. So Yuri Nam (Ko: 유리 남) is European style order and Nam Yuri (Ko: 남 유리) is Korean style order.
Korean 영국 means United Kingdom and Korean 잉글런드 or 잉글랜드 means England. The original version of the chapter 1 uses the term 영국. '_anq', the translator of this comic book, made a mistake when he/she translated it.
There are two versions of chapter 1. One is translated by an anonymous person, ans the other is translated by '_anq'. '_anq' also translated from chapter 2 to chapter 13. The other's translated version chapter 1 is wrong. Actually, it is almost rewritten version. A half translation is correct, but the other half is incorrect! I think, maybe the translator's Korean level is not high so he imagined the story when he didn't understand the part.
Anyway, you'd better read the chapter 1 translated by _anq on MangaDex because except MangaDex all manga sites have only incorrect version of chapter 1.
English
https://www.mangadex.org/manga/21436/sweet-x-trouble
https://mangakakalot.com/manga/sweet_x_trouble