Hayate the Combat Butler Vol 4
How anyone can not be curious about a book called Hayate the Combat Butler where the titular 16 year old hero became the butler of an 13 year old otaku who though he professed his love to her and thus saved him from the yakuza, who were hunting him because his parents sold them his internal organs to pay off their debts is beyond me. Especially when he goes around doing things likerescuing her from Evil Mecha piloted by her Evil Cousin, and then attacks it with a machine gun he brought along just in case he needed it, even though she sold him to her best friend.