Looking for 2 Manga

Hi ~ I need help finding 2 manga (￣∇￣")

1) I can't recall if it was shounen or shoujo but it's about this little crown princess finding the mc (i think he was male?) to be her lost twin sibling. The princess takes the mc to live with her in the palace and the mc comes to have high expectations of the princesses future rule as queen. However, the princess had enemies and on the day of a celebration she was on her way to address the people when she got killed (i think with an arrow) in front of everyone. The mc quickly dresses up as her to take her place and tells the people that the one that died was a fake. Now the mc must live as the crown princess.

2)I think this one was a manhwa from how dramatic it was. The story is about a female jjang or banchou that is in a motorcycle accident and wakes up in the body of a very pretty girl. I think the pretty girl might've tried to commit suicide or something. The pretty girl liked thnd the guy eis guy who was very mean to her, ands up falling in love with the jjang while she is inside the pretty girls body.

please help ┗( T﹏T )┛