Happy Enemies + Healing and Redemption Lin Chen (cold academic master, math genius): alienated on the outside, but inside is a "little transparent" family member who longs for warmth.
Lu Xingran (Sunshine school boy, basketball master): He seems as cheerful as a little sun, but in fact he has family scars that he doesn't want to talk about.
From being roommates who were "forced to share space" and bickering with each other, to being the only person who can see through each other's disguised vulnerability.
Well written! Just not popular