We defined the JGRG membership, following the discussion at JGRG29 and at online JGRG in 2020.
You can register to the JGRG mailing list freely without any restriction, while for the entry to this membership we request that you are a member of the Physical Society of Japan or the Astronomical Society of Japan.
A JGRG member can get a discount of ISGRG (International Society of GRG) member fee. You can become a JGRG member by registering from this Google form.
As the first representative of JGRG, Dr. Tomohiro Harada at Rikkyo university was elected. His term is 3 years from Septermber 2021.