Hate telling the straight truth about something, but try to avoid telling lies even more. Don't
ever lie about content, to the best of your knowledge and belief. Then, practice and enjoy. That should take you pretty far.
You want a straighter truth about V12? Here you are:
Spoiler for The real truth about Campione! (V12 spoiler):
What happened from V1 to V11 is all a lie, or at least something less than a dream.
Godou is shy around girls, doesn't know how to talk to them and tenses up. He's not used to being around them. The three idiots are his best friends and they even unequivocally call him comrade, in their full. Hotblooded. Goodness. Every morning, Godou goes running as usual for him.
Shizuka's happy she's got her Onii-chan to herself.
Erica and Lily are around because he is their Lord's, Salvatore Doni's good friend (although Godou doesn't admit it). Therefore they are in Japan to observe, no, watch over him (to help or take countermeasures). Lily has the theory, and says aloud, that Godou actually holds affection for Salvatore that crosses the line of friendship and just acts tsundere about it. Erica is constantly showing Godou cold, derisive smiles while keeping her distance. Or keeping him away.
Since her encounter with Bobby, Yuri is scared shitless of anything and everything Campione. Godou helped her once (V2), but the destruction and mayhem going hand in hand with it did nothing to abate her trauma. She even flees from Godou given a chance.
Ena is nowhere to be seen.
And that's been the status quo since spring, since Godou became a Campione. Welcome to V12.