Formula #911 (ブレンドナンバー119 Burendo nanba 119?) is the 35th chapter of the manga and the fifth chapter of the Shampoo Intro Arc. Ranma and Akane return home and tell the Tendo's the news. After Shampoo shows up, Akane immediately attacks Ranma when Shampoo hugs him, even though she can't remember who he is. Shampoo realizes she didn't completely erase Akane's memory and tries to use her technique again, but this time Ranma manages to get the shampoo away from her.