I don't see how this is related to Kantai Collection and have also checked pixiv. The closest series to this post is Upotte, as a related tag suggests. Thus, I'm removing the tag.

Demundo said:

I don't see how this is related to Kantai Collection and have also checked pixiv. The closest series to this post is Upotte, as a related tag suggests. Thus, I'm removing the tag.

Correct, this is actually a Mecha Musume of the Estovakian CFA-44 Nosferatu from Ace Combat 6.

I can also confirm that the other aircraft are MQ-90 QUOX from Ace Combat Infinity and the Estovakian Malgebolge UCAVs.

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