In August 2015, Hey! Say! JUMP was chosen as the TV personality of NTV's annual 24 Hour Television, which was a program to raise awareness for all the people that are going through hard times, alongside another Johnny's group, V6. Yamada portrayed the hero, Ryohei Sasaki, in the 24 Hour Television drama special called Okaasan, Ore Wa Daijoubu, along with other Johnny's members Takahisa Masuda and Yoshihiko Inohara as cast members. He portrayed a high school student who's passionate about soccer, but suffers from a brain tumor. For the role, Yamada lost 6 kg within just a week.