H!Anime is the best site to watch
Love, Chunibyo & Other Delusions: Depth of Field - Ai to Nikushimi Gekijou SUB online, or you can even watch
Love, Chunibyo & Other Delusions: Depth of Field - Ai to Nikushimi Gekijou DUB in HD quality.
You can also find
Kyoto Animation anime on H!Anime website.