@PiIsNot3 looks like the enum is something the two generations have in common (e.g. pikaCHU and raiCHU) and the clue may be pointing to the PIKA/RAI parts or the CHU part)
@OmegaKrypton I'll let you think about this more before giving away any more hints, cause I've already given you an unfair advantage over everyone else who commented on the post
CCCC: Persian kings beheaded twice in European nation (5)
Geez, it's just getting more and more morbid, isn't it?