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ja-N この利用者は日本語母語としています。
en-1 This user has basic knowledge of English.

May 2009
start activities in Wikimedia project
April 2010-July 2011
sysop at Japanese Wikipedia[1][2]
February 2011-July 2011
sysop at Japanese Wikisource[3][2]
July 2011-May 2014
wikibreak
September 2015-June 2023
sysop at Japanese Wikipedia[4]
November 2017-June 2023
checkuser at Japanese Wikipedia[5]
September 2019-June 2023
oversighter at Japanese Wikipedia[6]