Forty, the bill life has sent me contains traces of the years that have passed and the tasks of tomorrow that I still have to complete.
"Forty Bills" is a coming-of-age essay filled with sincerity about the life one faces at the age of forty.
It calmly unfolds the regrets and realizations felt over the passage of time, as well as the 'process of becoming an adult' that one is still learning.
Forty is like a strange guest who suddenly appears one day, shaking our hearts, testing our relationships, and making us reflect on ourselves.

〈Bill of Time〉 is about the weight of life felt in the flow of time.
〈Inyeonbongguseo〉 is a book that teaches the precious heart that can be learned from relationships between people.
〈Mind Bill〉 is about inner changes and the amplitude of emotions,
"Growth Bill" contains a story of challenges and recovery that do not stop even after turning forty.

This book is a record of affectionate comfort for all those in their forties who are in pain but growing, who are shaken but become strong again.
Right now, at this very moment, unfold the bill that life has handed you.
You will encounter a new 'me' in it.