Anon says:

I’m not sure that there was any brainwashing involved. It’s possible, but it’s clear that when Add time travels, things that happened well before the time he traveled to can be drastically changed, such as the date of Elboy’s birth. It’s possible that Elesis’s personality changed as well, so that she doesn’t hate the demons as much in this timeline. It’s also implied that she betrayed and slaughtered the Red Knights in this timeline, although it’s not made clear whether this is because of the demons corrupting her or if this was what got their attention to begin with.

It seems to have been made pretty clear that the reason Elesis slaughtered the demons in Feita was because D was displeased with something they did, and so D sent Elesis to deal with them. Expendable units seem to have been sent to Velder as well, I would bargain that the only reason the Demon Army accompanied Elesis was so she could use them to heal. Otherwise, Elesis alone is strong enough to destroy Velder.

We don’t really know what Aisha’s backstory in this timeline is yet, but considering her introduction it’s possible she never lost her powers due to that ring like in the main timeline. We also don’t know for how long she has known Elesis, and whether they joined the demons together or one persuaded the other.

What is especially scary however is the position Add is in. It’s possible that Elboy might just give up and join the demons to be with Elesis, which would trigger Eve to do a similar thing. Of course, that means Add as well would be joining up with them. Considering we already know his 2nd job that he hasn’t reached yet on this path is Diabolic Esper, this doesn’t seem entirely unlikely. Eve is on the Code: Nemesis path as well. These are the two paths that seem most likely to join with the demons, considering the current trend.

If this were to happen, then that would mean on the side of the demons would be Lord Knight, Void Princess, Code: Nemesis, Crimson Avenger, and Diabolic Esper.
All that would be left in the Search Party is Grand Archer and Sakra Devanam, assuming Blade Master continued going his own way.

We still don’t know who Chung will ally with. I think it’s most likely that if he does join the demons though, he will do so on the Deadly Chaser path, since this is the path I have the easiest time believing would do such a thing and who could have a sadistic personality if corrupted enough. If he joins the Search Party though, I feel like Iron Paladin and Tactical Trooper are both the more heroic paths.
An interesting plot twist would be if Chung were corrupted by the Demons, and his father was still the guardian of Hamel in this timeline.

My prediction is that Elboy is not going to join the demons however. The search party is in a bad situation currently. Elesis is even stronger, Aisha has joined up with her, and the search party are all wounded and tired. The only thing I can think of happening is during the fight things go badly, and Add is forced to time travel whether he likes it or not. Elboy would have to defeat Elesis again, and then Add’s knowledge of what comes next could brace the search party so that they aren’t caught so off guard. He could even use the chance to stop Eve from hating him.

Alternatively, Either Elesis or Aisha could be convinced to join up with the Search party and betray the demons. We haven’t seen Aisha’s power demonstrated yet, but she seems to have time and space bending properties to her magic. If she was in the search party, Add could probably use her to help him refine his dynamos so that he can become stronger.