Code Geass is one of my favorite anime, and as with all of my favorite anime, the characters are a big part of what made the show for me. Code Geass had a lot of characters, most of which were very well-implemented, but one in particular stands out to me as possibly one of my favorite characters.
That character is C.C.
Yosuga no Sora helped put arc-based harem anime on the map, with its branching episode structure. Its four heroines each have very well-done, fleshed-out paths, and bring the branching style of eroge to anime.
Sora Kasugano is the twin sister of main character Haruka Kasugano. Though she’s spoiled, jealous, and possessive, she became my favorite character as I watched the series.