Sanpakugan-chan wa Tsutaetai.
三白眼ちゃんは伝えたい
72%MANGAfinished2018
三白眼ちゃんは伝えたい
This is a retelling of how Amane and Katou met, from The Story of a Girl with Sanpaku Eyes. (Source: MU) Originally uploaded to Twitter, after six chapters it was serialised by GANGANpixiv, where it is being republished and now continues. - Anilist