Ugawa Hiroki manga
The story's about the blond-haired Haru and the dark-haired Ryotaro who are the best of friends. A girl suddenly steps into their life and caught their attention, and thus romance blossoms! The thing is that she is experienced in the field of love, but on the other hand, they have zero love experience?!
Everyone thinks 16-year-old Ryoko has weird taste in guys because she can't stop drooling over Ryu, the strong silent type who sits next to her in class. When she discovers he works for a host club--where women actually pay men to date them--will she finally wise up? Only one thing's for sure in B.O.D.Y.--you can't put a price on love!
Ayumi is a 16-year-old who has a crush on her classmate, Musashi. One day, the God of Death appears before her, and announces that she has only one month left to live. There's no stopping the hourglass of fate! Life is short, girl, so love with all your might!