The new CM for au's "Santaro Series" have begun airing on August 1. Its CM song "Ouchi wo Tsukuro" is composed by Hata Motohiro. 

In the CM, Kiritani Kenta, who plays 'Urashima Taro,' sings "Ouchi wo Tsukuro" while playing the Sanshin. While being surrounded by his friends, they dream about their goal of "building a family." 

You can take a look at the 60-second and 30-second CMs below. 

60-second CM:

30-second CM: