Nunnally and Nemo's geass allows them to "see the lines of the future", an ability that functions like precognition. It is similar to the geass used by Bismarck Waldstein, except that it is more effective because it tells the entire future instead of just one person's. A red geass sigil lights up in Nemo's left eye while it is activated. When combined with their the Mark Nemo, they are almost unstopable on the battle field, taking someone like Alice and her artificial geass "The Speed" to even contend. The geass aparently takes a large toll on Nunnally's body, because she is seen bedridden after long usage of the geass.