Shisui's death became the last straw that broke Yu Kame's mind. His brother left him.
The kaleidoscope opens at the same time as the brother falls off the cliff, as if he is also mourning this wrong world. Yukama's kaleidoscope is very special and does not have any offensive or defensive power. However, Yukama is very grateful to this kaleidoscope. It has changed the possibilities of the future - the third eye can predict the future.
This article originally created a new character, which is equivalent to opening a spoiler. The CPs are Yukama and Itachi, Obito Kakashi, Naruto Sasuke, Sakura Ino, Neji Tenten, Kimimaro Jugo, etc.
If you are interested in these CPs, you can choose not to read them (the order of CP names has nothing to do with body positions). The CPs that are not written should be based on the original works.
The world line after Shisui's death is different from before, and it is not very based on the original work. The author is not good enough and the characters may be OOC.
Purpose: Peace