Here's the ad from Dance with Devils. More info on ANN.
It turns out Yamamoto Kaji first started pursuing Horikita Maki in Atashinchi no Danchi. He asked for her number and she gave him instead the number for the agency. More info on unleashthegeek of Yamamoto's perseverance.
Burn Your Fat With Me, moetivational fitness app is getting an English version. From: Crunchyroll.