Chapter 4

Experiment #4: 100% Negation Armor (実験その4: 本人の前で匂い感想戦) is the 4th chapter of Ueno-wan wa Bukiyou.

Plot
Ueno has invented a new fabric that can negate any physical impact, called the 100% Negation Armor (Note: this is called the 1-7-6 Protective Gear Japanese). She has shaped this into a very clearly oversized bra, which she is wearing in the hopes of getting Tanaka to admit that he notices the increase in bust size.

She challenges him to find where she has it on her body, letting Tanaka keep it if he guesses correctly. He guesses she has it on her butt and he keeps smacking her bottom, despite her insistence that the gear isn't there. Tanaka's reasoning is that Ueno isn't wearing her tights that day. He continues to chase her around, and he grabs her forcefully and makes her admit he is right, all while Yamashita looks on in disbelief.

Ueno tells Tanaka he is right, and decides to head home, but Tanaka wants the protective gear, as promised. Ueno isn't sure what to give him, since he didn't guess where it actually was. Ueno gives him her panties, but Tanaka doesn't like how they look. He gives them back, laying them on her rear as she crouches on the floor in embarrassment. Ueno says she wants to die.

Cast
Ueno

Tanaka

Yamashita

Title
The original Japanese title (1-7-6 Protective Clothing) refers to the "compulsory obscenity article" of the Japanese penal code. This doesn't translate to English, thus Bainhardt changed the title.