Let's Dance a Waltz v01-v03 (2015)

English translation of the Japanese manga Waltz no Ojikan (ワルツのお時間).
A popular boy who has abandoned the world of competitive ballroom dance. An ordinary-looking girl who has given up her dreams of becoming a princess. When these two unlikely partners come together to dance in a national competition, sparks will fly! What will happen when she takes his hand... ?