Statistics for 痛いのは嫌なので防御力に極振りしたいと思います。

This graph shows the percentage of words (in total) that you'll be able to read assuming you know a certain percentage of unique vocabulary that appears in this work.

CoverageVocabulary required%
70%9056%
80%157711%
90%316423%
95%523038%
96%596243%
97%691850%
98%824060%
99%1028375%
Difficulty histogram