화룡점정
畵龍點睛 · painting the dragon's eyes
The finishing touch that completes something.
When to useThe last detail that makes a project perfect.
Examples
마지막 불꽃놀이가 축제의 화룡점정이었다.
The final fireworks were the crowning touch of the festival.
Korean life dictionary
22 short guides to words and manners