
Mikoto is a beautiful girl who dazzles anyone who sees her. For Masahide, who lost his parents, his younger sister Mikoto is the only "family" he has. One night, however, Mikoto kills a man in front of Masahide's eyes. Innocent love spirals out of control, and the ultimate incestuous suspense begins! (Source: Shougakukan, translated)
Boku ga Imouto wo Korosu made is a Japanese manga of 6,513 characters, with 1,053 unique words and 579 different kanji. Its difficulty rating on Jiten is average, 2.5 out of 5. The full vocabulary list ranks all 1,053 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
This title is too short to reliably find similar media.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.