User blog comment:B214/Season 3 discussion/@comment-1359322-20150411112501

Okay check the episode summaries Jop showed me till episode 5, it seems like the anime will be mixing Volume 5 & 7 events for the first 5 episodes, so probably all the main actions Rias vs Sona Rating Game, Diodora battle and Loki battle will all take place after episode 5.