I feel like the ending is cruel tbh. The story could’ve still been amazing if they didn’t include the girlfriend trying her hardest to get back together with him. Yes she wasn’t the best person and didn’t really take her boyfriend’s feelings into consideration. But does that mean she had to die? I’ve read people say she deserved it and that it was karma but does being a bad girlfriend mean you deserve to die. Not only did she die while she wasn’t even supposed to die but she discovered that her boyfriend never loved her. She lost everything. They could’ve kept the same storyline but with Gu having 7 days to make him fall in love. If they wanted to have the annoying girlfriend trope they could’ve added her. Make Ying realise that she was annoying and break up with her. But I also don’t like how she was the one in his body. Like it just annoyes me I really hate this. He should’ve been able to make his own decisions not have a girl obsessed with getting back with her boyfriend make them.Otherwise the acting was amazing. There were some cute moments that I really liked. But it just angered me that she not only found out her boyfriend had been lying to her all along but that she also died when she wasn’t supposed to.