Eien ni Koi wo Shiteiru Mitai ni: Akihiko & Shuuichi

Shuuichi Sata has always given himself up to the highest bidder for as long as he can remember. Every last bit of him is a commodity, from his dinners to his touches to his love. When he takes an interest in Akihiko Watanabe and his wild ambition, he decides to be the one investing for once—everything's on the table for Akihiko to take at will, except his body and his heart. What if Akihiko doesn't just want to be his investment anymore? (Source: Fantasista Inc.)