Kozano Akari (古座野 燈) from the game Ore no Tsure wa Hito de Nashi (俺の彼女はヒトでなし), the last character from the game. Trained for 800 steps from a variety of in-game images. Feels kind of limited compared to the other characters but works.
Prompt
kozanoakari,light blue hair,blue eyes,ponytail,long hair