Black Butler manga volume 5 features story and art by Yana Toboso.

For an impeccable gentleman's butler like Sebastian Michaelis, the word "impossible" is just not in his vocabulary. Everything demanded of him under the English sun is well within his grasp. But do his talents extend to things under the scalding Indian sun?! As Harold West-Jeb's plan to use Agni, Prince Soma's superhuman butler, in a curry battle to win himself a Royal Warrant is exposed, Earl Ciel Phantomhive sets Sebastian to the task of creating an incomparable curry to defeat the despicable West-Jeb. But how can Ciel's devil of a butler possibly best Agni, the man with the Right Hand of God?!