The video link demonstrates how to knit this pattern. The explanation is in Korean but there is an English subtitle.

In the video the subtitle for row2 and row4 are incorrect.
Please refer to the pattern for the correction.

Corrections

Row 2 (WS): k1, kwl rep. to last 1 st, k1
Row 4: kwl, k1 rep. to last 1 st, kwl