Back to the jack manga

Back to the Jack summary:

From Twisted Curiosity: Meguru is an ordinary schoolgirl on a school trip. They stop to take a break and she is determined to confess her feelings to the boy she likes, Yashiro. When they get back on the bus, however, a strange man grabs her and says that he’s bus-jacking them. He shoots Meguru for putting up a fight and she thinks, fading into oblivion, “I wish I could go back in time”. The next thing she knows, she has woken up in her bed at home and quickly finds out that it’s the day before! What in the world?