Naoki actively took part in LDH's "Yume no Kagai Jugyō Chūgakusei Rising Sun Project Project (Your dream Extracurricular Class: Rising Sun Project for junior high school student)", a charity project aiming to encourage children throughout Japan, especially those in Tohoku and Kumamoto, to become energetic with the power of dance after 2011 Tōhoku earthquake and tsunami and 2016 Kumamoto earthquakes, and supported the reconstruction work in post-earthquake Tōhoku and Kumamoto. Naoki, took part in a few special lessons in some post-earthquake area, teaching dance move of Rising Sun, the song in support of the recovery after the 2011 Tōhoku earthquake and tsunami, to children of those post-earthquake areas to cheer them up.