With the progress of society, online surfing has become an indispensable entertainment for modern people, so online chatting is naturally one of these entertainments. It can make people who have no communication change from acquaintance to acquaintance or even love each other. This is the wonderful place of the Internet. The following story takes place in this illusory network. The heroine is a patient with congenital heart failure, and the hero is a... Did the heroine really die like this? What fate will they have?