Greater Intimacy Through Self-Defense

Greater Intimacy Through Self-Defense (護身術で大接近) is an extra chapter included in the 10th volume of the Attack on Titan: Before the Fall manga, written by Ryō Suzukaze and illustrated by Satoshi Shiki.

Overview
Cardina teaches Sharle about self-defense. At first, Sharle is reluctant to attack Kuklo, who is posing as an attacker, but the two begin practicing soon after.