During an interview with TV Daily, the actor revealed how he still keeps in contact with Park Seo Joon, Jo Yoon Woo, and Kim Tae Hyung (BTS' V).  "I still keep in contact with fellow cast members of 'Hwarang'", and shared how he interacts with them via group chat.

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In regards to maknae V, Do Ji Han mentioned, "Rather than the hyungs teasing the maknae, it's actually the other way around.  V likes to joke around with us.  He is full of aegyo."

Previously, Do Ji Han showed his support for his costar, by posting a message about BTS' hit track "DNA" on social media.

Onto his other cast members, he added, "We usually meet up for drinks once in a while to catch up and talk about random things.  Since December is approaching soon, we're planning to have an end-of-the-year party."