According to Firefox, the font used for both taito and the ramen character is “Noto Sans CJK JP”, which you can see here: https://fonts.adobe.com/fonts/noto-sans-cjk-jp
What’s odd is that I can’t find this exact font on Google’s own Noto Fonts page.
I went digging in the Arch Linux packages to find where they get them from and as far as I can tell it must be these:
I think it should be this particular font:
It’s weird because on the web page if I try to display the characters in the sample text it doesn’t work, but if I download the fonts using the “download family” button and use a script to look into the files they do seem to support it:
Font static/NotoSansJP-Thin.ttf supports character U+30EDE '𰻞'
Font static/NotoSansJP-ExtraLight.ttf supports character U+30EDE '𰻞'
Font static/NotoSansJP-Light.ttf supports character U+30EDE '𰻞'
Font static/NotoSansJP-Regular.ttf supports character U+30EDE '𰻞'
Font static/NotoSansJP-Medium.ttf supports character U+30EDE '𰻞'
Font static/NotoSansJP-SemiBold.ttf supports character U+30EDE '𰻞'
Font static/NotoSansJP-Bold.ttf supports character U+30EDE '𰻞'
Font static/NotoSansJP-ExtraBold.ttf supports character U+30EDE '𰻞'
Font static/NotoSansJP-Black.ttf supports character U+30EDE '𰻞'