Genki is a 6-book series with 2 primary works first released in 1999 with contributions by Eri Banno, Yoko Ikeda, and 5 others.
1999 • 3 Readers • 384 pages • 5
1999 • 2 Readers • 148 pages
1999 • 1 Reader • 136 pages • 5
1999 • 2 Readers • 130 pages
1999 • 1 Reader • 122 pages