The original light novel series that inspired the anime and movies, written by Torako and illustrated by Nozomi Ooishi, was first published.
The anime television adaptation of 'Love, Chunibyo & Other Delusions!' was first aired, increasing the series' popularity and setting the stage for subsequent movies.
The movie 'Love, Chunibyo & Other Delusions! Rikka Version' was released in Japanese theaters, serving as a compilation film with additional scenes focusing on the character Rikka Takanashi.