BTOB Sungjae’s Girlfriend: Red Velvet’s Joy, Kim So-hyun, or DIA’s Ju-eun?


Who is Yook Sungjae’s Current Girlfriend and Other Dating Rumors?

A few fans think that BTOB’s Sungjae has at last met his other half. In Sungjae’s solo MV, fans discovered hints that have similarities with his moments with Red Velvet’s Joy. However, it seems like it was just a rumor since Joy is confirmed dating rapper Crush in September 2021.

In any case, it only talks as it is believed that Yook Sungjae is not dating anybody as of 2021. Cube Entertainment as Sungjae’s agency never confirmed anything about his girlfriend.

That being said, there are some rumors about his dating journey from the actress Kim So-hyun to DIA’s Ju-eun. Check out the content in the section below if you are curious!

Yook Sungjae With Kim Sohyun: Partners in A Drama With A Great Chemistry

Yook Sungjae With Kim Sohyun

Sungjae and Kim So-hyun met when they became partners in a drama called ‘School 2015’. It was the start of the dating bits of gossip between Yook Sungjae and actress Kim Sohyun. Korean netizens hypothesized that Sungjae and Sohyun are dating secretly.

The netizens believed that the connection between the two is valid. An unknown netizen added that even though Sungjae and Sohyun had been paired as a couple in certain shows and photoshoots before, yet it was in 2016 that they had been connected as lovers.

Sungjae and Sohyun have been coupled in numerous photoshoots and a drama (School, 2015). This was the beginning stage when they met one another and became good friends. They even shared some selfies to their own record and show on the off chance that they are close. Netizens discovered it as sweet chemistry between them.

In an interview with Naver, Sungjae said that BTOB members‘s residence and Sohyun’s home are close so she can call him now and then they can hang out. Furthermore, they are caught by fans when they hang out together. A source known as Sungjae’s friend said they were close since February 2015 and they begin dating in March. However, this statement has not been confirmed by any of the agencies.

Yook Sungjae Was Rumored to Date DIA’s Jueun

Yook Sungjae with DIA's Jueun

On August 13th, reports arose that Yook Sungjae and DIA’s Jueun have been dating since January 2018. Soompi had at first detailed that the two idols met at a social event with companions and later began to look all starry-eyed at one another. A representative then said, “The two idols enjoy dates in their extra time while fulfilling their bustling timetables.”

The source added, “Even though they are mindful of their surroundings in manners like being joined by colleagues, they have not been hiding their affection for one another.”

Be that as it may, the dating reports were denied by their agencies. BTOB‘s agency Cube Entertainment stated: “We checked with him, and the facts confirm that they were at a social event with colleagues, yet they are not dating.”

DIA’s agency MBK Entertainment expressed: “It isn’t accurate that she is dating Yook Sungjae. The facts demonstrate that they were as of late at a get-together with associates, however, we have looked at [with her] and discovered that they are not close.”

BTOB’s Sungjae and Red Velvet’s Joy

Red Velvet’s Joy and BTOB’s Sungjae were a virtual couple on the reality show We Got Married, or WGM.

Both of them actually had very good chemistry as a couple, “husband and wife,” making them look like an actual couple. Moreover, the two popular K-Pop idol members recently released a song with a music video titled “Young Love” which also features sweet interactions between the two of them.

Sungjae and Joy’s Romantic Moments in We Got Married

Yook Sungjae and Joy meet for the first time. (WGM Season 4 Episode 276, aired on June 20th, 2015)


Sungjae and Joy have a street date. (WGM Season 4 Episode 278, aired on July 4th, 2015)


Sungjae and Joy move into their new home. (WGM Season 4 Episode 280, aired on July 18th, 2015)

Yahoo Lifestyle Singapore

Sungjae and Joy celebrate Chuseok. (WGM Season 4 Episode 290, aired on September 26th, 2015)

Koogle TV

Sungjae and Joy have their wedding ceremony. (WGM Season 4 Episode 296, aired on November 21st, 2015)


Joy Sent a Video Message to Sungjae


Joy and Sungjae seem to have remained close, even after their part in the We Got Married program ended.

Sungjae starred in Oppa Thinking on August 7th. In the episode, Red Velvet‘s Joy “appeared” on the show, as she sent a video message. She revealed the advice Sungjae gave her during We Got Married. Joy said, “It was my first time participating in a variety show, so I didn’t know a lot about what I needed to do, but Sungjae told me, ‘You’re someone with your own good vibes. You don’t have to try too hard to impress everyone’.”

She continued, “I thought he was really cute to act like a much older Oppa when he was actually only one year older than me.” Joy also sent her personal message for Sungjae, “Our virtual marriage may have ended a while ago, but I’ll always be cheering for you in my heart. Let’s stay close. Fighting!”

Sungjae then responded to the message, saying, “This is really embarrassing. At that time, I had debuted around three to four years prior so I think I wanted to share what I already knew as a sunbae (senior). Joy was extremely busy back then and she was suffering emotionally, so I told her not to look tired. I told her things like that but now I don’t know why I said that!”

Sungjae and Joy’s Reunion After Their Virtual Marriage Ended

Sungjae and Joy successfully made their fans carried away while being a virtual couple on the show We Got Married. They finally reunited in the latest episode of Sugar Man Season 2 on Sunday, April 15th, 2018. Sungjae performed together with members of the BTOB vocal unit: Changsub, Eunkwang, and Hyunsik. When introduced, Park Na-rae addressed Sungjae with “Joy’s ex-husband.”

“Actually, we haven’t met again since the WGM ended,” Sungjae said. “That’s because we are both very busy and it’s very difficult to keep in touch with each other.” Sungjae and Joy were then asked to explain each of them as they were familiar. The star of the drama Goblin was successful in making fans excited by calling Joy’s real name, Park Sooyoung.

“Sooyoung…” Sungjae said before being cut by Park Na-rae. “Sooyoung? Wow!” said Park Na-rae. “She is very innocent and in harmony with her emotions. People are honest and have innocent sides like a child,” Sungjae said. “Sungjae Oppa is an adult and guides me well,” Joy said.

Yoo Jae-seok teased them by saying, “That’s not what she said (Joy) when in the waiting room. She called him (Sungjae) weird,” he said. “That’s because Sungjae’s nickname is ‘Yook Jal Dddo’ which means ‘Yook Sungjae, handsome but weird’,” Park Na-rae said.

Fans flooded footage of Joy and Sungjae’s reunion moments at Sugar Man Season 2 with excited comments. Many were carried away because Sungjae still called Joy with her real name.

Are Sungjae and Joy Actually Dating?


Joy and Sungjae were one of the best couples to have ever appeared on We Got Married. But have you forgotten them already?! Due to their age, longtime viewers of WGM were unsure, at first, of Sungjae and Joy as a couple. But they quickly became one of the most popular couples due to their innocent style, adorable antics, and obvious chemistry.


They were constantly taking adorable photos and smiling brightly whenever they were together. Fans started worrying that Sungjae was really falling in love with Joy during the show, based on how he acted around her!


They noticed how he focused on the smallest details and was always there for Joy to help her no matter what. Sungjae would constantly be protective of Joy and take care of her, even helping her to cover her skirt at times!

The two became everyone’s ideal couple, with their personalities and styles totally matching. After appearing on the show together, Joy and Sungjae even started looking super similar to each other!


It’s common for couples to start “becoming one” after dating for a long time… but it almost felt like Joy and Sungjae did it instantly! The two had even more adorable moments together, like when Sungjae kept trying to hold Joy’s hand…

But she kept teasing him, pretending to be upset and avoiding him!

Or the heart-melting time when Joy said, “I’m so cute!” and Sungjae just casually responded, “Yes, yes, I know.” Or the time they shared that romantic moment cuddling in bed together… and the alleged hidden kiss.


As the couple’s time on We Got Married was coming to an end, they shared one last stage.

The two sang for one another, with Joy bursting into tears while remembering their time together. But when it came time for them to say goodbye, it was nothing but tears and sadness for everyone involved.

Joy revealed how strong she felt with Sungjae by her side and how much she cherished their moments together. Sungjae talked about how precious their moments were together and how upset he was as well.


“I felt strong with Oppa by my side, he was [enough] as a present to me,” said Joy. And Sungjae said, “It’s disappointing because we just started [the show]. I was only just starting to express my feelings better, but all the moments I spent with Joy will remain precious [to me].”

In real life, they don’t date at all. Indeed, they were buffeted by rumors of dating after We Got Married ended, but both decided to be friends with each other and support their respective careers. Even though many fans support their relationship, the agency has never confirmed that they have been involved in a relationship.

That was all the information about BTOB’s Sungjae’s girlfriend and the relationship between him and Kim So-hyun, DIA’s Ju-eun, and Red Velvet’s Joy. They might not date each other in real life, but we’ll never know what happens in the future. So, let’s anticipate and don’t forget to tune in to Channel-Korea for more information about Sungjae and other idols!