oiko.jp
Go to the Sign In pageSelect Account and choose Sign In.
Email address or phone numberContinueSign in to your account
Learn how to sign in to your Oiko.jp account using your email address or phone number and password.
Steps to sign in
Follow these steps to sign in to your Oiko.jp account.
oiko.jp
Enter your email or phone numberUse the email address or phone number associated with your account.
you@example.comContinueoiko.jp
Enter your passwordType your password and select Sign In.
••••••••••••Sign InRemember me
Use this option only on a trusted device. Do not select it on shared or public devices.
Important security reminder
Oiko will never ask for your password, verification code, or personal information by email or chat.
- Only sign in on the official Oiko.jp website or app.
- Report suspicious messages to our support team.
Need more help?
Our support team can help you with your account.