Gugudan SEMINA hold unit debut showcase

​Gugudan SEMINA's Kim Nayoung, Kim Sejeong and Kang Mina held their subunit debut showcase in Seoul on July 10, where they performed their new songs 'SEMINA' and 'Ruby Heart'.

After the performance, the girls sat down to answer questions about their debut, new album, experience filming the music video in Bali and more. They also shared their advice for the contestants of survival reality programme Produce 48, as the three of them also participated in the previous season.