Matou Shinji Returns from Infinite

As a child, I thought I was the most special in the world.
until I met her.
In middle school, I thought she belonged to me alone.
until I met him.
In high school, I thought I was the last winner.
until I met it.
A few years later, I sat in front of the computer and reminisced about the bitterness of old age, thinking that I really understood everything.
until I met him.
……
In the winter of Chapter 199 3, the new Sorcerer Supreme returns and decides to take a gorgeous revenge on the 'future' that is to come.
(This is a decadent uncle who lived to be 37 years old and was thrown into the infinite space to be remade. He walked through countless battlefields, and was finally beaten by a certain purple sweet potato spirit. He returned to his eight-year-old days to make wind and rain, leading the history of pan-humanity A story of embarking on a road of no return)