Naruto : Start with Kamui

Lin Yu accidentally crossed the body of Obito while watching Naruto at home! The first thing is to reclaim Kakashi’s sharingan, and achieve complete kamui! Send away Madara, kill zetsu. I can move forward freely in the world of Ninja!

Source:
https://comrademao.com/novel/hokage-start-with-double-kamui/