When Kousei-kai group and Dosei-kai group were formed after the reorganization of parliamentary groups within the House of Peers in 1919, the Tea Party group, Kosei-kai group and Dosei-kai group based in Saiwai-club were combined and opposed Kenkyu-kai group and the Seiyu Party.
1919年に院内会派の再編で公正会・同成会が成立すると、茶話会・公正会・同成会は幸倶楽部を拠点に連合して研究会及び政友会に対抗した。