The protagonist is Song Yang.
When I wrote this, Teacher was still a beauty with a lovely jawline. He only appeared in flashbacks and hadn't shown his face yet, but I was already completely smitten, so this story came to be.
Of course, it won't be exactly the same as what happens later~
[Soul-Calling Incense] Song Yang and the three students at the village school, with a focus on Short Sugi
[Thoughts in Circles] Before the Joui War, the events leading up to Volume One
[Mandala] Song Yang and Takasugi's first meeting, the events leading up to Volume One, with a continuation in Volume Two
Theme: Some people are the direction our obsessions point toward, an eternity we are unwilling to forget
The connection with the original work is very good, and I was really worried when I saw the choice.
I found a good article ^_^~~ Great support for the author!
The final ending is actually in the first chapter. I hope the teacher successfully comes back to life and is with Takasugi.