Mana Ashida
On April 4, 2011, it was announced that Mana Ashida and her co-star Fuku Suzuki would team up to produce tdrama's theme song in their debut as singers. The duo will release the song under the temporary banner of . This theme song will be entitled , and it will include sections where the talking dog, Mook, will sing. The song takes its name from the fact that Ashida will play the character Kaoru, while Suzuki will play the character named Tomoki. The Mook is from the talking dog's name. Hamada Miwako, the choreographer for the hit song "Gake no Ue no Ponyo" was the song's choreographer. The single album for the song "Maru Maru Mori Mori!" was released on May 25.