Board Thread:Theories and Speculation/@comment-34661853-20181218233634/@comment-34661853-20181219105355

Elveonora wrote: I think it's a similar case to Nagato. Just like he couldn't use Sharingan and Mangekyou, Hanabi can't activate the Tenseigan.

I thought so too, but the eyes were of Madara and not of Nagato. In that case the eyes are Hanabi's.

FlatZone wrote: Probably, but she does not have the body or the chakra reserves to use it.. so the drawbacks it would bring would be too much for her. Pretty much the same reason why only Nagato could use both Rinnegan unlike Obito.

Toneri did not seem to be someone with large reserves of chakra, but he used Tenseigan. And Kakashi who had no chakra every time could use Mangekyou.