However, after a group which formed the Seiko-kai due to internal conflict of the Mokuyo-kai (Thursday Association) in 1910 could not maintain the faction and dissolved the following year, some of former members became a member of the 'Independents' so it qualified as a faction.
ところが、1910年の木曜会の内紛によって清交会を結成したグループが会派を維持できずに翌年に解散すると、その一部議員が「無所属」に入会したため、会派としての資格を得た。