Hayate the Combat Butler, Vol. 13  (English, Paperback, Hata Kenjiro)

What makes a maid? When the ghostly priest who haunts the Sanzenin mansion (what, you forgot about the ghostly priest?) reveals that he can't rest in peace before fulfilling his last earthly wish, the ever-accommodating Hayate promises to help. Unfortunately, that wish is to hit on a nubile maid! Soon everyone--Hayate, of course, included--is struggling to master the arcane art of maid cosplay. And if that's not exciting enough to send you to Heaven, this volume also reveals the shocking secret origin of Nagi's pet tiger.