Wikipedia
Yorosen!
was a late-night daily Japanese edutainment TV program featuring Hello! Project members as teacher and students. It aired on TV Tokyo from October 6, 2008 until March 27, 2009 on weekdays, with a running time of about 7 minutes. This show was a replacement for the show "Berikyū".
Yorosen showcased the 3 main groups of Hello! Project: Morning Musume, Berryz Kobo, and Cute. Each episode ended with a segment by Erina Mano.