This email is an expected behavior of MIRAI as the new assignment has started (*System recognizes that a new user is generated).
As long as you are still able to login MIRAI successfully, please disregard this.
In case login fails or any other issue occurs, please contact MIRAI Help Desk.
TEL: 011-330-8322
TEL: 0120-646-800 (Personal Phone）
*Availability: 9:00~17:30 on Working Days