[MENTION=28026]Selvaria Bless[/MENTION] No, you don't need to get 100% activity for Overdrive.
You just need to keep the 99.x% activity for as long as possible.\
Eventually you'll get the overdrive achievement
Could you please reupload these?
https://www.anime-sharing.com/threads/2003-witch-fake(フェイク)-soundtrack-op.1217706/
https://www.anime-sharing.com/threads/2000-pinpai-rebirth(リバース).1314894/
https://www.anime-sharing.com/threads/1998-pinpai-missing-itsuka-kitto-(missing-~いつかきっと~)-soundtrack-op.1210849/ https://www.anime-sharing.com/threads/2002-witch-milkyway-2-cd-soundtrack-op-ed.1431041/