1. This contest requires submission via E-mail. The submission email is: main+acfc2025entry#misakacastle.moe (please replace # with @).
  2. The submission email needs to meet the following format:

    • Email subject: [ACFC2025 Regular Group] Contestant Nickname (if team submission, please indicate team name) - Song Name - Main Difficulty, Level and (Rating) (e.g., [ACFC2025 Regular Group] Misaka Rehana - Yuru Fuwa Jukai Girl - FTR 10 (10.5))
    • The email body needs to include the following content:

      • Contestant nickname (individual contestants need to use the E-mail representing their personal main contact information to send this email; participating teams need to use the E-mail representing the entire team to send this email and indicate the team name and all team member nicknames)
      • Contestant's Discord ID (if participating as a team, all team members' Discord IDs need to be provided; they should match the Discord account used to join Misaka Castle server)
      • The name of the song in the chart pack
      • Description of all charts in the chart pack (including difficulty type (Past/Present/Future/Eternal/Beyond), difficulty level, and the difficulty rating that the contestant/team considers most appropriate under Arcaea official algorithm)
      • [Attachment] Chart pack packaged in .zip format (detailed format requirements please refer to the Rules and Regulations; size must not exceed 100MB)
  3. You acknowledge and agree that: the submission is final and cannot be changed; after submission, please wait for a reply from the contest affairs group to confirm whether your submission is compliant and valid (it is expected to reply within 1-3 working days).
  4. The submission channel opens from Dec 31, 2025 at 09:00 UTC (04:00 EST) to Feb 5, 2026 at 09:00 UTC (04:00 EST).
  5. If you participate in ACFC2025, you need to join the contest server a.k.a. Arcade-Chan official server Misaka Castle to receive important contest-related notifications in a timely manner. The contest affairs group is not responsible for any missed important notifications due to failure to join the contest server.
  6. Invalid submissions will be directly returned (a notification email will be sent) and will not count towards the contestant's/team's submission limit.
  7. If a contestant/team is disqualified (DQ) due to rule violations, all their submissions will be considered invalid submissions, and only a disqualification notification email will be sent.
  8. Submissions exceeding the submission limit will be directly ignored (no notification email will be sent) and will not be considered valid submissions.
  9. For any matters not covered, please refer to the Rules and Regulations or contact the contest affairs group at: main+acfc2025#misakacastle.moe (please replace # with @).
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