As promised, cast members of ongoing drama "Hwarang" attended BTS's Seoul concert to show their love to co-actor Kim Taehyung, also known as V. On Sunday, Do Ji Han took to his Instagram account to share snippets of the show.

According to Soompi, Do Ji Han attended the second day of "The Wings Tour" with "Hwarang" co-actors Minho and Jo Yoon Woo. They even got the chance to catch Kim Taehyung at the backstage after the concert.

"Our youngest member worked so hard!!! I hope that your spring days in the future will be even warmer and brighter," Do Ji Han captioned their group photo.

Jo Yoon Woo shared the same photo and wrote, "If Park Hyung Sik [was] here, it would have been the full '91 line...? Encore, encore, encore."

Aside from their group photo with Kim Taehyung, the actor also shared a photo of the jam-packed venue and a selca with his "Hwarang" co-actors.

Before the two-day concert, Do Ji Han shared he is close with the cast members even outside filming.

"We are still very close. So this time, we're talking about who will be going to V's (Kim Taehyung) concert together," he said as cited by Koreaboo.

Hence, the actors have live up to their promise and showed up at Gocheok Skydome despite their hectic schedules. BTS's Kim Taehyung played as the youngest hwarang in the historical drama.

His character as Hansung died on the Feb. 14 episode of "Hwarang," breaking the hearts of the viewers on Valentine's day. Despite his early departure from the series, the BTS member thanked his seniors for making his acting debut a success.

"I was able to film happily because Park Seo Joon, Hyungsik, Minho, Do Ji Han, Cho Yoon Woo, Kim Hyun Joon, and Sung Dong Il sunbaenim as well as the director, writer, and all the staff on site taught and helped me. I'm so thankful," Kim Taehyung said.

Catch the last two episodes of "Hwarang" on Feb. 20 and 21 at 10:00 p.m. on KBS2.