Nae Sarameul Dollyeojwo!

Can charisma be learned?

Desperate to charm his crush, shy Tae-O buys a copy of How to Win Friends and Influence People. To his shock, the book's spirit pops out and starts giving him advice, and he sees a flicker of hope. Follow Tae-O as he learns the art of love, friendship, and social skills from a wise old fox spirit!

(Source: Manta, edited)