Terius Behind Me Korean Drama Review

Terius Behind Me Korean Drama - So Ji Sub and Jung In Sun

Terius Behind Me (also known as My Secret Terrius) is a mystery romantic comedy about a single mother (Jung In Sun) whose husband recently passed away that teams up with her legendary NIS agent neighbor (So Ji Sub) to solve a huge conspiracy.

So Ji Sub is our secret agent Kim Bon. He’s a stoic man who tries to lay low and keep to himself while on his mission. But when that mission leads him to his neighbor, life gets a lot more interesting for him when he steps in to babysit her children.

Jung In Sun is Go Ae Rin. After her husband dies, she is left as the sole provider for her kids. But thankfully, she gets a little help when her neighbor Bon offers to babysit for her. Little does she know, that he is on the trail of those responsible for her husband’s murder.

Son Jun Ho is Jin Yong Tae. He’s one of our villains who runs a company that Ae Rin ends up working at. He’s a unique man who is a bit high maintenance. He also has a lot of secrets surrounding his company and his past.


We’ve got our other secret agents Ra Do Woo (Kim Sung Joo) and Yoo Ji Yeon (Im Se Mi). Ji Yeon has a long history with Bon which includes some feelings for him while Do Woo is a genius hacker.

Then there are our other parents who are close with Ae Rin: Sang Ryul (Kang Ki Young), Eun Ha (Kim Yeo Jin), and Sun Mi (Jung Shi Ah). They are a lively and close knit group who know all of the gossip and have a network ready to get to the bottom of just about any problem. They are a fun bunch!

I found Terius Behind Me to be a mostly pleasant drama. It did take me a few episodes to warm up to it though as the main story was a bit slow in developing. They just kind of took their time with the set up.

But thankfully, there’s a good bit of humor and fun with Bon being the stoic secret agent taking care of a couple of rambunctious kids. While he was a bit too stoic for my tastes, So Ji Sub certainly fits that roll well. And the kids are as cute as can be, but they are the kind that like to get into trouble. They just don’t listen that well!

The romance between Bon and Ae Rin is subtle but sweet. Much of it revolves around Bon simply becoming a part of their family as he gets involved with the kids. They become a bright spot in his reclusive life. Eventually, Ae Rin also starts getting more involved with Bon and his mission which lets them work together. The relationship is still slow going, but it’s there.


We do have a mystery conspiracy going on too. It starts out fairly straightforward and then slowly peels back the layers to learn more about the bad guys and their motives. I didn’t find the spy side of the story particularly thrilling, and it was quite lacking, but it did round out the drama well enough.

I found that I lost a lot of interest in the drama by those last few episodes. There is much less screen time with Bon, Ae Rin, and the kids together which honestly was the highlight of the show. Instead, we shift the focus to wrapping up the spy story, which as I mentioned, I found a bit ho-hum.

Terius Behind Me Korean Drama - So Ji Sub

But overall, Terius Behind Me was a fun enough story that mixed elements of romantic comedy, family, and spy action. It really was our main duo and the kids as well as the entertaining parents club that made the drama worthwhile for me.

I never got that emotionally invested in the drama, but I laughed because of the quirky characters, and I did enjoy the heartwarming moments of Bon opening up a little bit and finding a family. It’s a sweet little story that’s a pretty solid watch.

My Rating: 7/10

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About Kay

Greetings! I’m Kay, creator and author of Kdrama Kisses. Kdrama Kisses is dedicated to bringing you the latest in kdrama casting news, drama trailers, reviews, and more. Happy drama watching to everyone!
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16 Responses to Terius Behind Me Korean Drama Review

  1. Timescout says:

    The spy element was a joke, and that’s how I treated it while I was watching. 😃 Eventually I just lost interest and dropped Terius… like so may others this year.

    Liked by 2 people

    • Kay says:

      Yep, it was definitely lacking, lol. I almost always want a good story even in my rom-coms, but in this case I would have just preferred watching the spy/kids interactions and the parents club be silly 🙂

      Liked by 1 person

  2. The twins and Bon’s interactions are the must watch in this drama~ 😀
    Nice review Kay! I kinda lost interest in some of the episodes too~ But I finished it without skipping an episode~ There are so many kdramas that I skipped this year too… 😦

    Liked by 2 people

    • Kay says:

      Yes, them and the other parents were what made this drama fun 🙂 Thankfully, they made up for the lacking spy story. Glad you made it through without skipping, even with those last few eps 🙂

      Liked by 2 people

  3. Fred says:

    Nooooo! I was expecting a higher rating. Oh well. Not anymore on my watchlist. LOL.

    Liked by 1 person

  4. Kate says:

    Your review was spot on! The interactions with Bon and the kids definitely livened things up and when they were not together on screen the rest of it just felt flat. I watched til the end but was disappointed in the series overall 😦

    Liked by 2 people

    • Kay says:

      The stoic spy/kids shenanigans definitely made the drama. That’s why those last few eps really highlighted the drama’s flaws since they were missing so much of the time. I think it would have been better to have scaled back the overall spy story in favor of developing the new family more. Ah well, it was tad disappointing, but at least it was still cute enough though.

      Liked by 2 people

  5. D says:

    Hmmm not as good as I thought it would be. I’m glad I waited for your review on this one. I might watch it one day if it does become available on Netflix.

    Liked by 2 people

  6. I am currently watching this drama. Watched 10 episodes yesterday and bracing myself for maybe not so good last few ones. There are many flaws but it’s keeping me hooked so that’s good. I will probably finish this one today.

    Liked by 1 person

    • Kay says:

      Oh, that’s great that you’re enjoying it 🙂 It’s definitely very flawed, but the cute family story is very fun. The last eps were disappointing since there wasn’t much of that which really highlighted those flaws. But still cute enough overall 🙂

      Liked by 1 person

  7. Ann says:

    To me this is sadly one of the many disappointing dramas this year. I watched up to the third episode and couldn’t continue. Even the babysitting thing didn’t do it for me 🙁. This turned out to be reallllllly different from what I expected. Or what the posters/promotions made me expect. I thought it’d be a good spy drama but mygosh, I couldn’t carry on after seeing the spy team. Everything just felt so off for me when the first few minutes actually made me anticipate what’s to come. Such a big let down and Im sad because I was looking forward to this soo much. And it’s So Ji Sub too! I loved him in Master’s Sun. i was expecting some serious spy stories with a hint of romance and family but… this is not it.

    I was excited about Son Ho Jun too but everything just felt flat. If they’d advertise this as more of a comedy and less about the spy bit then I provably wouldn’t be as disappointed. They really did advertise it as some sort of next level spy drama though and I felt like it had SO much potential. The acting from the spy team felt a bit unnatural and unconvincing. Sorry but for now (and after this review lol) it’s a no go for me 🙁


    • Kay says:

      Aww, that’s too bad 😦 Yeah, this is definitely not one to get into for the spy story. I was surprised they made it such a large part of the story anyways since it was really lacking. And yes, if you already didn’t enjoy the babysitting/family story, you probably wouldn’t have liked it if you kept watching since that was the biggest selling point. Especially those last few eps were dragging. I agree, I do think it would have been better to have advertised more strongly on the comedic side. I really hope you’re next drama goes much better for you 🙂


  8. Lol I think I’m the only one who is a die-heart fan of this drama. I gave a 11/10. Honestly, the spy stuff was a bit comedic, which was the aspect you have to take the drama in, so I loved it! Also, wonderful cast!

    Liked by 1 person

    • Kay says:

      Haha, I don’t think you’re the only one 😊 I know several people who loved it. It was a cute drama. It’s great that you were able to just roll with it and enjoy all aspects of the series. It’s always nice to find a drama that you love 🙂


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