My head aches from guessing

Reread this manga for nth times and my head aches of thinking Allen's previous life before he become a child Allen and host of Nea. Is Allen truly a Noah or the heart of innocence or is he a Bookman or part of 7000 years history or the pillar or is he the one who fought the 1st generations Noah Clan, or just a friend of Nea. The Apocryphos or whatsoever have been following Allen he could be the key of the Heart. Cross are acquaintance to Road and he seem to sympathize the Noah clan. Did Road, Nea, and Cross collab to stop Noah Clan's plan. Aaaaaah I gave up and just wait for le updates till it reach to chapter 400 to avoid cliffhanger.


Also le fans will hate me but somehow I kinda find Lenalee annoying because she sound like a Mary Sue. I don't hate or dislike her just find it annoying.