Please ask those questions on the main board next time ;)
Anyway, it's 灼熱のカウントダウン, a BL novel. The illustration was made by Oyamada Ami should you want to see her manga works.
Thank you for the information about the BL novel. And, what's the main board?
On mangago's main page in the bottom is the question section where people usually ask help like when they're trying to find a particuliar manga. Not that it matters all that much, it's just how it usually is. Anyway, you'll usually be more likely to have answers there more quickly.
I saw that wonderful picture in vol. 6 ch. 42 p. 2 . I so want to know which manga is it? The guys on it look so coool :D . Please tell me.