Japanese pop singer Asca (born on 5 September 1996 in Achi Prefecture) first
gained national prominence in 2013 after finishing as a finalist at the 5th
Animax All-Japan Ainsong Grand Prix, a Japanese anime competition organised by
Animax. Her performance led to a one-year contract with music label Media
Factory and her professional debut followed. "Prime Number: Kimi to Deaeru Hi"
(Prime number ~君と出会える日~) was released in March 2013 and used as the second
ending theme to the anime television series The Pet Girl of Sakurasou. However,
she decided to put her singing career on ice i...