Bokura No Negai
Complete | yamamoto kotetsuko | 2012 released
Masakadou E Irasshai
Ongoing | yamamoto kotetsuko | 2013 released
Lucky Number 13
Complete | yamamoto kotetsuko | 2009 released
Brothers (YAMAMOTO Kotetsuko)
Complete | YAMAMOTO Kotetsuko | 2001 released
Ashita wa Docchi Da!