To attend the National Institute of Informatics Open House 2023 (register for tickets to the real venue or watch online), please login here. *If you are attending the Open House, please register as a new attendee first. *If you have already registered on the National Institute of Informatics event site in the past, please login with your previously registered ID and password. *ブラウザの設定で「英語」になる方はログイン後に言語設定で変更いただけます。