SPICA were guests on the September 1 airing of 'Cultwo Show,' on which it was revealed that member Boa attended the same high school as Ryu Joon Yeol! 

SEE ALSO: Netizens question HYBE's choice to schedule BTS RM's 2nd album release date on the same day as NewJeans' comeback

During the show, a listener sent a message claiming that s/he was Boa's high school classmate, and that Ryu Joon Yeol also attended the same school. 

At this message, Boa responded, "I didn't know that [Ryu Joon Yeol] and I attended the same school, but I did hear about it. His class was right next to mine. I wonder if he recognized me, as well."