diff --git a/docs/expo/upfc.md b/docs/expo/upfc.md
index 66573bec..2c3cbe6b 100644
--- a/docs/expo/upfc.md
+++ b/docs/expo/upfc.md
@@ -42,3 +42,5 @@ So at first we fetch 3 html pages in parallel, then scrape each to build `UPFCEv
 ## Development and Test
 
 We cannot create a test account for up-fc.jp so we use someones' account to fetch the necessary HTML contents, store them in test fixtures and reuse it for testing. @hpapp/features/upfc/internals/scraper/testdata is a data captured by the developer in 2020 and 2021 where executive membership was active.
+
+We also have dummy data in DemoScraper implementation to test look&feel.