The Second Independents was established by 25 members including 10 nominated members of the House of Peers such as Ryohei OKADA who had belonged to the largest faction Kenkyu-kai (the House of Peers) opposed the cooperation of the Kenkyu-kai and the Hara Cabinet and left from the faction as well as some members of the Independents including Moritatsu HOSOKAWA.
最大会派研究会_(貴族院)に所属していた岡田良平ら10名の勅選議員が、研究会と原内閣との連携に反発して会派離脱を行い、これに細川護立ら一部の純無所属議員を加えて25名で発足した。