I loved the characters so much and the actors acting was so good as someone who has insomnia my self i connected to dongwoo easily however i still don't understand why he left do hyun in high school. Do hyun is the cutest character ever he was so shy and cute around dong wook and u can clearly see that he was deeply in love with him. Their first kiss was adorable and well done. This drama is so cute and relaxing i keep watching it nonstop however there were some things that i didnt understand like the infirmary scene and some of dong wook's actions and the last episode felt so short i wish they showed us more of their dating life