[Touken Ranbu] function

Lightning protection: Tsurumaru Kuninaga × the original male protagonist, probably Ai Liao He × Dull Judgment Academy paro, the original reference comes from a wife of Okita Sougo Bar, which has been authorized.The so-called function is nothing more than describing the relationship between two variables.The meandering trajectory in the coordinate system formed by two vertical straight lines has become the most complicated part of high school mathematics.Tsurumaru Kuninaga and I are so similar to those two variables.Content tags: Fantasy space game online game sweet text┃ Search keywords: Protagonist: Tsurumaru Kuninaga, Yuki Sakuichi┃ Supporting role: