Love, Chunibyo & Other Delusions - Heart Throb - Episode 12: The Superior Contract... of Twilight
Episode 12 of 12 of Love, Chunibyo & Other Delusions - Heart Throb -, aired March 26, 2014, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Rikka is acting strangely around Yuta, and it takes all of her courage to confess her true feelings to him.