Yurina Kumai (熊井友理奈 ,Kumai Yurina, born on August 3, 1993 in Kanagawa, Japan) is a Japanese pop singer currently performing in the all-girl group Berryz Kobo, under Hello! Project. Kumai joined Hello! Project in 2002 after passing the Hello! Project Kids audition. She often is one of the lead singers in Berryz singles, and she is the tallest member of Hello! Project at 178 cm (5'10").