Who Did Kim KangWoo Have An Affair With In "Wonderful World" - The Next Door Neighbor Or The Sister?

"Wonderful World" is making quite the buzz both in Korea and internationally. Netizens are discussing a crucial plot point.

Ishani Sarkar, Kpopmap Editor
3 min to read · Published : Mar 11, 2024

Who Did Kim KangWoo Have An Affair With In "Wonderful World" - The Next Door Neighbor Or The Sister?

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One of the hottest K-Dramas on air right now is "Wonderful World", streaming on Disney+.

"Wonderful World" is a revenge thriller/melodrama starring veteran actress Kim NamJoo, Kim KangWoo, ASTRO's Cha EunWoo, and Lim SeMi.

It tells the story of a mother who loses her child and is consumed by vengeance, causing her to take justice into her own hands. Fate brings her across other people with similar pains, and they heal together.

Only four episodes in, and fans are already hooked on the story, which is offering several points of intrigue and entertainment.

Spoiler Alert!

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The Story So Far

It is revealed in episode 3 of "Wonderful World" that Kang SuHo (played by Kim KangWoo), Eun SooHyun's husband, had been cheating on her while the two were apart.

SooHyun is mysteriously sent a package containing pictorial evidence of the same, and she confronts SuHo about it, after which they decide to bury the matter.

However, SooHyun discovers that he still might be involved with the woman when she follows him to a hotel.

What she is met with is not only shocking to her but also to viewers!

Most viewers guessed that SuHo must have been cheating on SooHyun with Han YuRi (Lim SeMi), who is like a sister to SooHyun.

However, the woman SooHyun sees SuHo meeting is actually their neighbor, Yoon HyeGeum (played by Cha SooYeon), who had just invited SooHyun over the day before to comfort her and thank her for being a wonderful mother and a good influence on her son.

Kpopmap's Theory

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We think it was not actually the next-door neighbor that SuHo cheated on SooHyun with.

A particularly notable scene in the first episode was when HyeGeum was filming her son right in front of SooHyun's house.

It looked almost as if she was trying to film something else entirely.

To be precise, it seems to us that HyeGeum knew about SuHo's adultery and wanted to get video evidence of the same.

This ties in with our previous theory that the woman SuHo was cheating with was the one who ran out of the house and left the gate open.

That is how their son could run out onto the road, leading to the terrible tragedy.

When HyeGeum said she would pay SooHyun back for her kindness someday, she probably meant that.

So, the reason why SuHo was meeting HyeGeum in the hotel was to convince her not to reveal the truth to SooHyun.

K-Netizens' Theory

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Many K-Netizens who are watching "Wonderful World" think that SuHo may have cheated on SooHyun with two women—first, the next-door neighbor HyeGeum, and then YuRi.

When SuHo gets a call from HyeGeum, he asks if she is the one who sent the photo to SooHyun.

This might mean that he is afraid she may do so out of jealousy.

Many netizens are also pointing out that SuHo may be the biological father of HyeGeum's son HeeJae (Jin JaeHee) because HyeGeum gave birth when she was young, and the child's father doesn't seem to be in the picture.

Either way, netizens seem quite convinced that SuHo definitely had an affair with YuRi.

While many fans are saying that the affair aspect is even more fun than "The World Of The Married", many others are mentioning that they're tired of the affair trope and want to see more of Kwon SeonYul (played by Cha EunWoo).

What do you think of "Wonderful World" so far?

You can watch "Wonderful World" on Disney+.