Luke Siss

Luke Siss (ルーク・シス) was a member of the Survey Corps who participated in the 57th Expedition.

Appearance
Luke has chin-length black hair tied back in a ponytail. He also wears the typical Survey Corps uniform.

The Female Titan arc
Luke Siss first appears as a member of the Survey Corps' 57th expedition mounted from the Karanese District into the Titan-infested lands outside Wall Rose. Not long into the expedition, Luke works with Ness to take down a deviant Titan, despite being in an open field where their Three Dimensional Maneuver Gear can't be used at full effect; Ness takes out the Titan's ankles, and Siss destroys the nape of its neck when it falls. However, almost immediately after, the mysterious Female Titan appears. Following Ness' lead again, Luke tries to strike at the Titan, but it intercepts and crushes him effortlessly. Ness is also killed shortly after.

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Luke Siss