Kinoshita Nakui
Yeah a sort of afterstory would be cool about the kids and slice of life. Wouldn't mind a spin-off kind of thing with a kid, grandchild, student as protag and Li Nianfan in the role of the mysterious teacher or ancestor. I feel like he would play out such role just to be cool and kill time. Maybe from a bit more comedy/xianxia parody kind of angle.