Cho Happy Song is Danshi Joshi Project's fourth single. It was released on August 7, 2014.
- Cho Happy Song
- Shiawase no Tochuu
- Because Happiness
- The group singing Because Happiness is referred to the Kawaii Gundan while the group singing Shiawase no Tochuu was never given a set name. However, a few of the members refer to it as the Otona Gundan.