Ema is an excellent Sniper despite his age, as befits a member of a former A-Rank unit. Although he often goofs off during training, he has the highest individual score among middle school agents. Narasaka holds his skills in high regard. His mentor was Mirai Hatohara, and he possibly received further instructions from Isami Tōma, which would make him the disciple of two of Border's finest Snipers. His accuracy is so high he can draw a star by shooting at an immobile target. He is also adept at supporting his teammates and at estimating the defensive abilities of his target and selecting the most suited Trigger.
Ema uses Ibis against opponents who are able to block Eaglet with a focused Shield, breaking through it. He can land a hit even against highly skilled opponents from a frontal position, despite Ibis's slow bullet speed.
A default Trigger that erects a mobile barrier in a position chosen by the user. Due to the large gap in trion capacity, Ema's Shield was unable to repel Ninomiya's Asteroid despite the latter not using Full Attack.