Cast: Yashiki Yukari

From Art of Life:

After bumping into Fuumai, Ise finds himself in quite an interesting situation: sex for money. Yes, it really is just sex, or can feelings change over time? And what happens when one falls in love with the person buying them? Ise is about to discover what it feels like to be in love with a person who only thinks of him as a mere toy.

From Tokyopop:
After a near-fatal car accident, surgeons rebuilt Reiji with prosthetic parts and renamed him Himejima Kazemichi. It was a second chance at life...but there was no guarantee that his new body would last. As his artificial heart runs down, Kazemichi embarks on a journey to discover what his life really means, and live--and love--to the fullest. Along the way, he uncovers dark secrets about his past...including the organization that was responsible for resurrecting him...