The New Generation, or just New Gen, of kijikaiaku came some time after the war ended and the world was calmer again. Humans were mostly dealt with as Gaia wished, and those that remained were largely in hiding.
The New Gen were taught of the war, and why it had to happen, but they never experienced it themselves. Interested instead in moving towards the future, they sought to learn of the world all they could, driven by curiosity and wanderlust.
New Gen → Yilekith: Their curiosity and wanderlust now filtered through Yile's influence, these transformed New Gen retain their desire to understand the world, but through a different lens. The Yilekith form's inherent anti-kiji sentiment feels strange and uncomfortable to them, like wearing clothes that don't quite fit, though they navigate it with their adaptability.
New Gen → Revoleer: The questioning nature that defined them as New Gen makes them natural Revoleers. They were always meant to look forward, not back at old grudges they never understood in the first place. They were never invested in old conflicts anyway, now they can explore and learn without the baggage of choosing sides.