<p>Because Lelouch's Geass can only be used on a given person once, ever. This is one of the fundamental limitations of his Geass. Indeed, it is when his second Geass on Kallen fails that Lelouch realizes that this limitation exists.</p>

CC BY-SA 3.0
2016-09-15T10:18:12.450Z
actually Lelouch realizes the limitations when he tried it on that teacher using his Geass to ask for the subject on the next test. i do believe he confirms this between then and his reunion with C.C after some experiments
Memor-X
CC BY-SA 3.0
2016-09-14T18:25:43.737Z
2016-09-14T18:25:43.737Z
senshin
<p>Why didn't the geass work on Kallen the second time Lelouch used it? </p>

<p><a href="https://www.youtube.com/watch?v=Bfgyr91rr9Y" rel="nofollow">https://www.youtube.com/watch?v=Bfgyr91rr9Y</a></p>

<code-geass>
Why didn't the Geass work on Kallen the second time?
# Why didn't the Geass work on Kallen the second time?
Posted by: username_0 on 2016-09-14
Why didn't the geass work on Kallen the second time Lelouch used it?

<https://www.youtube.com/watch?v=Bfgyr91rr9Y>
**Tags:** code-geass
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## 1 answers
### Answer by username_1 on 2016-09-14. Score: 9
Because Lelouch's Geass can only be used on a given person once, ever. This is one of the fundamental limitations of his Geass. Indeed, it is when his second Geass on Kallen fails that Lelouch realizes that this limitation exists.
> **Comments:**
> **username_2** (2016-09-15): actually Lelouch realizes the limitations when he tried it on that teacher using his Geass to ask for the subject on the next test. i do believe he confirms this between then and his reunion with C.C after some experiments  
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