Incidentally, Inverse Yoshino has red eyes and eyepatch like Yoshinon, so I surmise the Inverse Yoshino has the same personality as Yoshinon, if not Yoshinon herself.

Considering that Inverse Yoshino has a barely-there chest cover... she's basically all of Yoshino's naughty imaginations coming to light. Oh, do I mention that making fun of her puppet is a shortcut to icy death (it could be worse, like say, death by explosions, with your blood as the explosive and your heartbeat as the trigger).

^That and i actually dislike seeing our cute Yoshino going inverse and doing that D:

but i wonder why i love Tobiichi Inverse state, probably because the smile on the cover

how about Inverse Kotori ?

She will become more bloodthirsty than before, superb regeneration and destructive power, everything she touch instantly burned down D:

By her admission it might be right... but Volume 16 revealed that Kurumi's friend used to wield Asmodeus before Kotori. It's entirely possible that Inverse Kotori would be partially based on Sawa's original self, twisted by destructive impulses.

Insane regenerative power is one thing, but I digress. My guess is that her Inverse form would trade her regenerative power for greater offensive power, walking wasteland effect (towns are spontaneously razed wherever she closes in) and immunity to overwhelming heat and energy weapons.

never known inverse kotori is that very powerful

@Anton0125 Inverse forms are basically the representation of the Spirit's raw, unadulterated power. They are generally stronger than their Sephira form, at the cost of corroding their hosts and limited control or even outright madness. In other words, they're essentially equivalent to Alter forms in Fate series (like Saber Alter).

For Spirits with Angels that needs tactical finesse for its full potential (Nia, Kurumi and Mukuro), it appears that their Demon Kings replaces them with instinct-driven abilities to a degree. If the Beelzebub is of any indication, Belphegor could easily cause untold destruction all over the globe simply by unlocking the gateway to that dimension. I'd like to hope that Mukuro is actually stronger in her regular form than her Inverse form, but I digress.

Uhhmm thanks for the reminder, but yeah, I noted it :^)

The clue is in the name - Inverse Spirits.

So far, the Inverse Spirits we've seen have all been the opposite of their base personality.

Tohka goes from being ditzy and warm, to highly intelligent and haughty

Origami goes from being fiercely determined on one goal, to indescriminantly destroying everything

Nia goes from being incredibly meticulous in her planning to fighting by instinct alone

Yoshino and Yoshinon effectively switch places

So with that in mind, it's likely that Natsumi will become excissively prideful, and Miku will either become shy and fearful (because she can be something of an attention whore) or completely man-crazy (because ordinarily, she abhorres men). For the others...Kurumi could possibly become a berserker because she's usually so calm - although perhaps she'll just be super emotional. Kotori would likely either be White Kotori, or Berserker Kotori al the time (she's normally in total control of herself, so that control would slip - either revealing her fear, or unleashing her rage). The Yamai Twins might trade personalities, or at least temperaments (imagine Kaguya spouting her chuuni rhetoric in a deadpan voice, or Yuzuru gleefully spouting her robotic syntax). Mukuro...would probably be a lot like when she locked her heart, I imagine? Love is super important to her normally, so one assumes she'd abhorr it while inversed.

How would Kagura and Yuzuru go inverse? Like if only 1 goes inverse do they both go inverse by extension?

That depends on the circumstances that led to their Inversion. There are two possible triggers: either one of the Yamai or Shido were killed right before their eyes. For the former the remaining Yamai would certainly went berserk. As for the latter, the Inversion process may vary based on the Reiryoku flow between them, and the circumstances behind their separation, which we don't really know much beyond the existence of Reiryoku pathway between them.

yeah..it depends on the flow~