<p>The Sharingan was stated to be the result of special chakra inside a Uchiha's brain altering their optic nerve when they lose those they love as Kakashi is not a Uchiha he is unlikely to be able to produce the special chakra required to gain the Mangekyou Sharingan.</p>

<p>Obito could still see through Kakashi's Sharingan when in close proximity had showing he is still connected to the Sharingan he gave Kakashi so I believe that through that connection the special chakra produced in Obito brain evolving his Sharingan into the Mangekyou Sharingan was trasfered to Kakashi's Sharingan causing it to evolve into the Mangekyou Sharingan.</p>

CC BY-SA 3.0
2014-06-02T10:59:10.430Z
And where might this be stated? with some valid sources this would be a amazing answer.
Dimitri mx
CC BY-SA 4.0
2022-02-26T20:50:00.997Z
I seem to remember something like this being stated too. It might have been in Kakashi: Shadow of the Anbu Black Ops, or it might have been in the Itachi light novels. Or in a recent episode that aired in the US on Toonami.
Shaymin Gratitude
CC BY-SA 3.0
2014-06-02T02:29:52.797Z
2014-06-02T02:29:52.797Z
Tasuxeda
<p>Both awoke mangekyou at the same time but only obito is aware of it and can use it. It took kakashi much longer to recognise its existence and convert it to a usable ninjutsu.</p>

CC BY-SA 3.0
2014-06-16T17:50:17.970Z
2014-06-16T17:50:17.970Z
BHS
<p>The visual prowess of the eye does not depend on the will of the person using it but on the one to whom it originally belongs to (because of Madara using his brother's visual prowess and even Sasuke using Itachi's visual prowess without originally having the abilities. Also, Itachi used Shisui's visual prowess without having Kotoamatsukami originally). Therefore, Kakashi did not awaken the Mangekyou. It was Obito who awakened it in both eyes.</p>

CC BY-SA 3.0
2016-12-11T07:42:21.097Z
2016-12-11T11:18:48.467Z
2016-12-11T11:18:48.467Z
Lucifer -
<p>Interesting question with no definite answer, so I'll post my 2c here.</p>

<p>The Mangekyou Sharingan is activated by the immense grief caused by killing the person closest to you. However, it seems like you don't actually have to kill him, but witnessing his death is enough.</p>

<p>For example, Itachi did not actually kill Shisui, rather, he watched him commit suicide (filler).</p>

<p>I believe that both of them awakened their Mangekyou Sharingans separately, and because they were both at the scene when it happened, it happened simultaneously.</p>

CC BY-SA 3.0
2014-05-11T23:43:15.550Z
So its pretty safe to assume that if one of them was not there, that person would not off awakend the mangekyou?
Dimitri mx
CC BY-SA 3.0
2016-04-01T01:59:38.000Z
@Dimitrimx I'm pretty sure the other person would still awaken the Mangekyou because if you remeber correctly, Obito was kind of seeing what Kakashi was seeing before he got to where he was (he was seeing small scenes of Rin dying).
Akira Mahisaseru
CC BY-SA 4.0
2022-02-26T20:52:20.313Z
Just a note: there are different versions of Shisui's death. In the Itachi light novels, Shisui tells Itachi to kill him so he can get his Mangekyou. Itachi pushes him in this version. The light novels are adapted in the anime, but I haven't seen them, so I don't know what that arc has to say about these events.
Shaymin Gratitude
CC BY-SA 3.0
2014-05-09T18:41:20.367Z
2014-05-09T18:41:20.367Z
Madara's Ghost
<p>Both Kakashi and Obito awaken their Mangekyou at the same time as told in this question <a href="https://anime.stackexchange.com/questions/4484/when-did-kakashi-and-obito-awaken-their-mangekyou-sharingan">When did Kakashi and Obito awaken their Mangekyou Sharingan?</a>  The sharingan Kakashi owns originally came from Obito, so is it due to Obito also being there at the moment Rin died that Kakashi's Mangekyou also awakend? Or asked in a different way. Would Kakashi have been able to awaken the Mangekyou without Obito being there?</p>

<naruto>
Did Kakashi's sharingan evolve because Obito was watching?
# Did Kakashi's sharingan evolve because Obito was watching?
Posted by: username_0 on 2014-05-09
Both Kakashi and Obito awaken their Mangekyou at the same time as told in this question [When did Kakashi and Obito awaken their Mangekyou Sharingan?](https://anime.stackexchange.com/questions/4484/when-did-kakashi-and-obito-awaken-their-mangekyou-sharingan) The sharingan Kakashi owns originally came from Obito, so is it due to Obito also being there at the moment Rin died that Kakashi's Mangekyou also awakend? Or asked in a different way. Would Kakashi have been able to awaken the Mangekyou without Obito being there?
**Tags:** naruto
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## 4 answers
### Answer by username_5 on 2014-05-09. Score: 9 | Accepted answer
Interesting question with no definite answer, so I'll post my 2c here.

The Mangekyou Sharingan is activated by the immense grief caused by killing the person closest to you. However, it seems like you don't actually have to kill him, but witnessing his death is enough.

For example, Itachi did not actually kill Shisui, rather, he watched him commit suicide (filler).

I believe that both of them awakened their Mangekyou Sharingans separately, and because they were both at the scene when it happened, it happened simultaneously.
> **Comments:**
> **username_0** (2014-05-11): So its pretty safe to assume that if one of them was not there, that person would not off awakend the mangekyou?  
> **username_6** (2016-04-01): @Dimitrimx I'm pretty sure the other person would still awaken the Mangekyou because if you remeber correctly, Obito was kind of seeing what Kakashi was seeing before he got to where he was (he was seeing small scenes of Rin dying).  
> **username_2** (2022-02-26): Just a note: there are different versions of Shisui's death. In the Itachi light novels, Shisui tells Itachi to kill him so he can get his Mangekyou. Itachi pushes him in this version. The light novels are adapted in the anime, but I haven't seen them, so I don't know what that arc has to say about these events.  
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### Answer by username_1 on 2014-06-02. Score: 3
The Sharingan was stated to be the result of special chakra inside a Uchiha's brain altering their optic nerve when they lose those they love as Kakashi is not a Uchiha he is unlikely to be able to produce the special chakra required to gain the Mangekyou Sharingan.

Obito could still see through Kakashi's Sharingan when in close proximity had showing he is still connected to the Sharingan he gave Kakashi so I believe that through that connection the special chakra produced in Obito brain evolving his Sharingan into the Mangekyou Sharingan was trasfered to Kakashi's Sharingan causing it to evolve into the Mangekyou Sharingan.
> **Comments:**
> **username_0** (2014-06-02): And where might this be stated? with some valid sources this would be a amazing answer.  
> **username_2** (2022-02-26): I seem to remember something like this being stated too. It might have been in Kakashi: Shadow of the Anbu Black Ops, or it might have been in the Itachi light novels. Or in a recent episode that aired in the US on Toonami.  
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### Answer by username_3 on 2014-06-16. Score: 0
Both awoke mangekyou at the same time but only obito is aware of it and can use it. It took kakashi much longer to recognise its existence and convert it to a usable ninjutsu.
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### Answer by username_4 on 2016-12-11. Score: 0
The visual prowess of the eye does not depend on the will of the person using it but on the one to whom it originally belongs to (because of Madara using his brother's visual prowess and even Sasuke using Itachi's visual prowess without originally having the abilities. Also, Itachi used Shisui's visual prowess without having Kotoamatsukami originally). Therefore, Kakashi did not awaken the Mangekyou. It was Obito who awakened it in both eyes.
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