Remember!
Shungo, Mayu and Reika are attacked by soldiers and are held captive in the house. Shungo fights back but is beaten up after being knocked out by a mysterious woman in a Tiki mask. Reika exploits Mayu's bad luck to trigger the various traps in the forest, spreading chaos among the enemy. She uses this as a diversion to free Shungo, who then faces off against the mysterious woman.
Aired 09/11/2007EP 6 - Remember!
Good Luck! Ninomiya-kun
Shungo is a normal high school student living in a huge house. One day, his sister Ryoko sends Mayu and Mikihiro Tsukimura, two siblings, to live with him to help Mayu overcome her problem. Mayu's problem: androphobia (fear of men), and Ryoko wants Shungo to help her overcome. How? By making Mayu and Shungo share the same room, bed, and even take baths together. To make things even worse, Reika Hojo, the student-council chair, somehow ends up becoming their maid.
(Source: Wikipedia)