
The OVA was bundled with the book Trouble Chronicle, released for the 10th anniversary of the franchise.
To LOVE-Ru: Multiplication - Mae kara Ushiro kara is a Japanese anime of 1,646 characters, with 343 unique words and 193 different kanji. Its difficulty rating on Jiten is beginner, 1.0 out of 5. The full vocabulary list ranks all 343 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.