okita souji alter (third ascension) (fate)
Okita Souji Alter in her Third Ascension outfit from Fate/Grand Order. The design of her armor is mostly the same as her Second Ascension, but the red portions become white, and the black cloth covering her breasts is also white. She also wears her hair in a high ponytail.
This tag implicates okita_souji_alter_(fate) (learn more).