Ninomiya is an ordinary high school student who lives at home with his older sister Ryoko. However, Ninomiya's life ceases to be normal the moment a cute girl named Mayu descends into the middle of his school's campus in a military-grade helicopter. It turns out Ryoko sent this girl, along with her older brother Mikihiro, to live at the Ninomiya household.
English: Good Luck! Ninomiya-kun
Synonyms: Goshusho-sama Ninomiya-kun, Gosyushosama Ninomiyakun, My Condolences, Ninomiya-kun, My Heartfelt Sympathy, Ninomiya-kun
Status: Finished Airing
Aired: Oct 5, 2007 to Dec 21, 2007
Premiered: Fall 2007
Producers: Kadokawa Shoten
Studios: AIC Spirits
Source: Light novel
Genres: Harem, Comedy, Ecchi, Fantasy
Duration: 24 min. per ep.
Rating: R+ - Mild Nudity