Xiang qin will know that she has night blindness and she thought that she would be abig trouble to zhi shu and there coming baby becuz her baby might inherit tha disease and while zhi shu sleeps that night..xiang qin think an idea to leave zhi shu while he sleeps at night and wrote a letterI CANT BE A BURDEN TO YOU AND ZHI shu wokes and saw the letter and zhi shu tried to find xiang qin everywhere but one day she saw xiang qin at his office crying and he told her not to leave him anymore then ***kisskiss*** then went home .... the ending is when xiang qin stepped on a *POOP* and zhi shu tried to wipe it whit his ballpen ..then they went to the ob gyne