Kai was a Krystal's boyfriend since they was 15 . One sunny day , they were going out for a date . Unfortunately , while they are crossing the road , a drunk man who drives a car are accidentally hit them two . They were sent to Hospital immediately . Unfortunately , Kai was in coma and Krystal was save from that accident . After a month , Kai was just woke up from that coma . Krystal was very excited to meet her boyfriend . But , there is sad thing when Krystal visit Kai in hospital . Kai didn't memorize all thing about Krystal . He is having an amnesia . Krystal went home sadly and went sleeping . When she is sleeping , she got a dream thats the girl was meet Krystal and said " U have 29 days to get Kai's memorized " .Krystal was shock and just woke up .
4 parts