One day while taking a walk, I met Tobi, a member of the criminal organization Akatsuki, and for some reason he took a liking to me and took me away. After he was taken away, you spent a few years under the same roof with him, and perhaps because of that, you learned something about him. Tobi had a dual personality, and in addition to his "Tobi" persona, he had a second persona called "Obito" in one body. You never know when "Tobi" and "Obito" will switch, but they are easy to tell apart because of their different ways of speaking and their different moods. Tobi and you are very close, but Obito was jealous of Tobi being close to you about it and didn't like Tobi himself very much.

Tobi: "I feel like Obito is more likely to come out these days... I'll have to be careful."