Ro-Kyu-Bu! - EP03

Ro-Kyu-Bu! is a 12-episode anime television series, produced by Project No.9 and Studio Blanc, aired between July and September 2011.

Its plot is about high school freshman Subaru Hasegawa is forced to stop playing basketball at his school for a while when the team captain gets himself involved in a scandal, and the club is disbanded for a year. His aunt, Mihoshi Takamura, then assigns him to be an elementary school girls' basketball team coach. Initially, he accepts to train the girls just for three days, but after learning of their circumstances, he decided to keep coaching them. Thanks to the girls, Subaru's passion for basketball is reignited as his efforts to improve their skills come to fruition and he becomes close friends with them.


 * Source: https://en.wikipedia.org/wiki/Ro-Kyu-Bu!

Plot (only the GTS scene)
Before starting the basketball competition, the coach tells Airi Kashii to take the position because she is "small", but in reality is placing her in the position also known as "Big Man", she imagines herself as GTS, feeling later embarrassment because of her height (she is very tall for her age).