Read manga: Life Is Short, Delinquent Youngster, Love!

manga
Summary:

An infamous delinquent is told that he would die soon unless he dates this girl from another school.From Chibi Manga:If you don't date her, you'll die! That was the prediction made to that delinquent boy, but what will be his destiny...?Read the rest as this manga is under a different name: Inochi Mijikashi, Koi seyo Furyou Shounen!