Please help!! [ID REQUEST]

just read this amazing bl manhwa where the main character had a situation in highschool with some named yoo sungwoo I think, but the ml had to leave the school because people discovered he was gay and mc feels super guilty. Later MC is a nurse and he finds that ml sent him a book that he wrote. Mc gets hit by a truck and wakes up in the book which takes place in joseon era. He sees someone who looks exactly like you sungwoo but is named yujin. MC also has an abusive step mom because of inheritance things? I have all the details except the name and it's killing meee

MC is a brunette, love interest had slight long black hair,,I think mc was named donghwa...? Or something with those letters