B1A4's Sandeul appeared on Mnet's '4 Things Show' on May 26 and reminisced about his first love.

When he was asked about his first love, he reacted like he wasn't all that sure about who his first love was, but confessed he did like this one girl from when he was five years old. He revealed he met her while swimming at the children's sports team at a YMCA.

SEE ALSO: B1A4 celebrates 13th anniversary with sold-out fan concert series

He said, "I fought for the first time because of her. �I fought with another boy, saying, 'She's mine.'" �Baro, who heard this, said, "What kind of love is that?" to which he replied, "Liking someone at age five is still liking someone. �What constitutes talk about an ardent love?"