Don't Run Away!
Reika's inner self has taken over and uses her corporate muscle to separate Shungo from Ryōko in an attempt to restore his memory. After reminiscing with Reika, he's drugged and held captive (plus nearly raped) in order to keep him from Mayu. Irori and Tasuku then combine forces with Shungo's other friends in an attempt to rescue him.
Aired 14/12/2007EP 11 - Don't Run Away!
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)