The original Honmon Butsuryu Ko association was the individual Zaike (lay believers) taking the lead in actual missionary work, practice and the way of Buddha teaching humankind, as lectured by Nichiren.
本来の本門佛立講は、日蓮の説いた教義の布教や実践・化儀を在家の信者が自ら率先して行うことを説いた。