Angel Time 

Four cute school romance stories, all having some sort of time theme. In the first story, a girl discovers she can freeze time. In story 2, a girl discovers she can communicate with a boy living 6 years in the past through notes written on her desk. In Story 3, A girl finds herself living the same day over and over again (like the movie Groundhog Day) and finally, a girl who has a crush on a boy 3 years her junior discovers what the world would be like if he were the one who was 3 years older instead.