One thing is clear now the main story is all about V and Arlene. Baam was killed by Zahard it was V who was reincarnated into his son dead body and soul splits in two parts one with no memory and other with full powers..
Then remember this there's also major person in Traum party one with4 eyes who was in the same room with TRUM Gustang & khun and other one is Arlen or icarus, the one who saw Traum experiment room.
It seems you still not getting the point you are mixing two timeline. V is alive coz Arlene has do to something with it before she left the tower she took V keepsakes along with Dead body of Baam & offer that body to Outside God I'm sure Outside God put V soul in Baam's Body in slumber state. V...
Enryu is not shining one, Remember Urek & other shining ones find hard to use Shinsu at first & even their outside powers not working so well inside tower on the other hand Enryu entered the tower & kill administrator.