Yamashita

Yamashita (山下 Yamashita) is a main character of Ueno-San wa Bukiyou. She often acts as the wingwoman to Ueno, participating in experiments to help her get through to Tanaka, although occasionally, she requires payment.

Appearance
Yamashita has a white bobbed haircut with ear-like strands on either side of her head. Her eyes have large white irises with no pupils, making her naturally look bored or tired.

She wears a school uniform that has a blue scarf and shoes, signifying her being a 1st year.

Yamashita also wears glasses, which go along with her constant reading.

A unique aspect is her socks, which have frill on the top of them.

Personality
Yamashita is usually low energy, and doesn't usually participate in experiments directly unless helping Ueno with Tanaka. It is stated that she has a low metabolism in Chapter 64.

She is often seen reading books with bizarre titles. These vary from eerie, such as "Water Storage and Management in the Afterlife" (Chapter 44), to the childish "Illustrated Guide to Juice Boxes" (Chapter 62), to the banal "Clothesline" (Chapter 67)

She is easily scared and bad with horror. This is first hinted at in Chapter 14 when she covers her ears while Ueno is (claims to be) playing a horror video game. This is confirmed when she wets herself ghost hunting in Chapter 19.

She seems to dislike the more extreme experiments. She is visibly shaken from using the P0GO Stick in Chapter 49.

Whenever something perverse happen around her, she is quick to accuse Tanaka and Ueno of sexual harassment. This is a running gag with her character.

She will get mad at Tanaka on Ueno's behalf, and she will often hit him.

History
In flashback Chapter 50, Yamashita meets Ueno and Tanaka when she wanders into the science club room during the Cultural Fesitval before her first year. She leaves confused, but joins afterwards.

After enrolling in the school, she is placed in class with Tanaka's sister Mizuna.

At some point, she decided to help Ueno with Tanaka.

Puns
Many characters have names that, when grouped together, form a pun. Yamashita is part of the following group(s):
 * The names of the science club members, Ueno (上野), Tanaka (田中), and Yamashita (山下) each contain a character of the phrase 上中下. This phrase loosely translates to: top (上), middle (中), and lower (下), referring to the age of each member.