Good lord. Who gets a dakimakura made of a "real life" person (in Akane's context), much less one's own sister?
I apologize to those of you who've been watching this all along and already know she's just like that (at least, so I assume), but it's the first I've seen of the character, so let me gape in astonishment for a few moments.
When we first saw her room back in the first ep of S1 I pictured Akari's sister looking creepy and over weight like the stereotype otaku. Then later I saw post #962690 and was pleasantly surprised.