This is the 11370th most frequent Korean word.
김창열과
The term "김창열과" refers to "Kim Chang-Yeol and," typically indicating inclusion of the person Kim Chang-Yeol with others.
Here, '김창열과' is used as 'with Kim Chang-yeol' to indicate companionship in the activity of traveling.
김창열과 함께 여행을 갔습니다.
I went on a trip with Kim Chang-yeol.
In this sentence, '김창열과의' is a possessive construction meaning 'related to communication with Kim Chang-yeol'.
김창열과의 대화는 정말 유익했습니다.
The conversation with Kim Chang-yeol was truly insightful.
'김창열과' here indicates a joint partnership or collaboration in accepting the task.