Seikimatsu★Darling / 世紀末★ダーリン

Kousaku Ogata has been nursing feelings for his coworker, Youichirou Takasugi, for so long that he can no longer sleep without dreaming of him. When he finally manages to confess, he is thrilled that Takasugi feels the same way. But despite their mutual attraction, Takasugi thinks that their relationship is doomed to fail due to an unfortunate incompatibility in the bedroom. Unwilling to give up, they end up challenging each other to a contest of romance in order to determine what form their relationship will take. ...