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We had discussed the plan together, it was going to be rather simple, it was all about invading the sect from the skies. Why would I even have an amazing floating castle of gigantic proportions like Fuyu if I won't abuse her powers to my heart's content?
Of course, that's where my conclusion came, I was going to abuse her powers to my heart's content! Her amazing mobility, the ability I got to make her invisible using a series of combined skills such as Stealth, Concealment, and then the Illusion Magic to mask her very presence from the skies, and then her great magic power, the ability to conjure magic by herself, and more…
We should be more than capable of raining her with attacks from above and make sure it is a destructive entrance… Although I fear there might be something like a barrier there.
Check "The Protagnist's Sister Is Actually the Strongest"!