"The Interest of Love" features Yoo Yeon Seok's eagerness to see Moon Ga Young after she abruptly leaves without a trace.
Interestingly, the romance drama soars to its new all-time high ahead of the finale.
'The Interest of Love' Episode 15 Viewership
According to Nielsen Korea, the Yoo Yeon Seok and Moon Ga Young led K-drama climbs to their highest ratings yet.
"The Interest of Love" episode 15 viewership scored an average nationwide viewership rating of 3.6 percent, marking a 0.4 percent increase from its previous episode of 3.2 percent.
Interestingly the February 8 broadcast is the drama's all-time high for the entire season run.
Where to Watch 'The Interest of Love' Finale?
Airing every Wednesday and Thursday, "The Interest of Love" is released on JTBC. Meanwhile, global viewers could watch the finale episode via Netflix.
The show's episode 16 will be released on February 9.
'The Interest of Love' Episode 15 Recap
A lot of secrets have been uncovered in "The Interest of Love" episode 15 as the season is bound to close its chapter.
Ha Sang Soo and the rest of KCU Bank were stunned after hearing that Ahn Soo Young resigned from her post.
Soo Young's co-worker Seo Min Hui revealed to Ha Sang Soo that she sensed something was off right before she requested a transfer to a different branch.
Ha Sang Soo has decided to ask for help from Seo Min Hui to arrange Soo Young's resignation as leave without absence hoping that he will find her and convince her to come back.
She found out thanks to his late brother's friend. Ahn Soo Young managed to talk to the wife and learned that her father begged the woman and paid for a settlement for her not to file an adultery case against her mother.
Feeling guilty, Soo Young confronted her father and asked for forgiveness. She learned that he is doing it to protect her mother and their children.
In the last scene of "The Interest of Love" episode 15, Ha Sang Soo was able to find Soo Young in her hometown and spent the rest of the day together.
Ha Sang Soo assured Soo Young that he will stay by his side even if she pushes him away.
After a delightful day, he heads back to Seoulk but Soo Young chose to stay at his hometown.
However, Ha Sang Soo's narration sparks curiosity after he said "That was the last time I saw Soo Young."