Tsurigane Saryou

Tsurigane (釣鐘) is a character introduced in Toaru Kagaku no Railgun as a competitor for Jailbreak Trial. Originally a member of the Kouga School sent to infiltrate Academy City years prior, she is later shown to be a traitor, having allied herself with Kimi and her group.

Appearance
Tsurigane looks like a teenage girl. She wears school uniform with full-body climbing harness and carries Tanto (短刀) at her back. Her hair is short and tied in a low ponytail style.

Personality
She uses a facade of clumsiness and incompetency around her older colleagues, but is actually a two-faced backstabber.

Background
Tsurigane is a member of the Kouga School of ninjutsu. She infiltrated Academy City by disguising herself as a Child Error and has lived in Academy City for ten years. Despite of being a member of the Kouga School, she appears to be not good at ninjutsu. Kouga School's training ends on age of five. She became orphan at age of five.

Jailbreaker Arc
Tsurigane first appears during the Jailbreak Trial. She receives help from unnamed ninja who have muscular body while climbing the wall of 2nd Reformatory (Juvenile Hall). Two days before starting Jailbreak Trial, she helps Kouga School member to sneak into Academy City easily. She introduces Jailbreak Trial to Oumi Shuri to observe Academy City's technology and achieve Oumi's purpose.

Although she joins the Jailbreak Trial as a team with Oumi, Yasu, Asai, and Sakata, she has shown herself to be clumsy and incompetent, and needing in training. However, this was a ruse. Later, after the jailbreak competition was concluded with Uiharu Kazari's victory, she is left alone with Oumi. Seemingly feigning injury, she tries to attack her in the back. Oumi catches the blade with her own, but it has already drawn blood. Knowing what Tsurigane has done, poisoning her, she runs away. Tsurigane later meets up with her new team, consisting of herself, Raifu, Aohoshi, and Kimi, with their plan to kidnap Uiharu Kazari.

Abilities
Tsurigane is trained in Kouga ninjutsu. She is skilled enough to fool her senpai, Oumi, into thinking that she is bad in fighting, allowing her to surprise Oumi and poison her, as well as parry her attacks.

Also, Oumi Shuri references Tsurigane having an ability as well when thinking about esper powers she wanted to see for herself, implying that Tsurigane went through the Power Curriculum Program and has an esper ability.