
The protagonist Natsuno Shinji spends his days helping his sister, Ai's coffee shop while attending school. However, the situation changed completely when he became friends with a popular school girl, Matsunaga Shigure! Natsuno Ai, an extreme brocon and Kamiya Aoba, his childhood friend misunderstood Shigure to be Shinji's girlfriend. To take back Shinji, they start teaching him naughty things. With his step-mother, Utako, and Shigure, what would the become of this war for his love!? The naughty education contest for the protagonist's life begins!!
Nee-chan no Susume ~Onee-chan no Itazura Seiseikatsu~ is a Japanese visual novel of 756,688 characters, with 13,313 unique words and 1,860 different kanji. Its difficulty rating on Jiten is easy, 1.7 out of 5. The full vocabulary list ranks all 13,313 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.