I forgot the title I remember the plot

I'm back again I forgot the title

About a disciple getting ravished by his shizun

It's about heart demon something

Shizum getting jealous of self because he didn't know who ravishing his disciple

Mc can't see people's face they all blank

Shizun is black haired, white hair during adolescence

Chapters are short slow burn slow update

Please help thus one is quite cute and eye candy