The line of Zen law that started from Jomyo NANPO (Daio Kokushi) to Shuho Myocho (Daito Kokushi) and then to Kanzan Egen is called 'Otokan' and all the priests of Japanese Rinzai sect belong to this line.
南浦紹明（大応国師）から宗峰妙超（大灯国師）を経て関山慧玄へ続く法系を「応灯関」といい、現在、日本臨済宗はみなこの法系に属する。