I don't really understand how Zuikaku passed, but ok. Honestly, I haven't seen her interacting enough to understand how she really is. It's all about her sis from what I know.
@Liu Isn't she one of the main characters on the Sakura line of events? She's usually the hot-head that rushes ahead and believes in her friends during those at least. And I really like that. Sad her skills aren't as good solo as her sisters.
Though the only events I've seen from the Sakura line have been her original one and Nagato's one (even though I think besides the unreleased Mikasa one we don't have more), plus some appearances in seasonal festivities or other celebratory event cutscenes.