spoilers
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idrk the plot in detail now because i forgot but from what i remember, tldr allen turns out to not be the real king since the real one was a stillborn but chris encourages him to keep his throne so he went to war with people who opposed him and then after he won they got married and chris replaces nathaniel.
then nathaniel apparently just didn’t want to lose his benefits if he gives birth to the king’s baby? iirc, but he softened up a lot and decides it’s fine and supports them and then allen sends him to the red rose knights’ leader thaddeus who’s an alpha and actually loved him from a long time so they got married too.
then both of the couples give birth to chester and cedric respectively, who are alpha-omega with cedric being chester’s bodyguard and there was a kidnapping incident when chester fell in love with cedric when he saved him, but they never expanded on the kids’ relationship other than mentioning briefly in the end that nathaniel gave cedric a mansion or something since he knows he loves chester so that they can elope iirc (also why i hc them as alphas cause why wouldn’t they be able to marry normally & have to elope)
oh and i remember chris telling allen about his past life and like 20 years after their marriage and chester became king, they moved from the palace where allen calls him by his real name before he became chris and he mentions how embarrassing it is for 40 year old something men to be flirting out in the open lol
i think that cedric and chester should both be alphas. heck, that’s my canon now.