Hisseki Kanteinin Shinonome Seiichiro wa Sho wo Kakanai

In an attempt to unravel the mystery left behind by her grandfather, Misaki visits Seiichiro Shinonome, the most famous person at her university, only to find him to be just as eccentric as the rumors say... Despite being a renowned calligrapher, he never writes, and his handsome face belies a sharp, venomous tongue. Though she almost gives up, she somehow manages to persuade Seiichiro to let her appraise the object