Little Busters! EX and OVA

Anime series cover (From MyAnimeList pages)

(From J.C. Staff page)

Japanese name: リトルバスターズ！ＥＸ

From MyAnimeList:

https://myanimelist.net/anime/20517/Little_Busters__EX

https://myanimelist.net/anime/17643/Little_Busters__Sekai_no_Saitou_wa_Ore_ga_Mamoru

From J.C. Staff:

http://www.jcstaff.co.jp/sakuhin/nenpyo/2014/02_litbus3/litbus3.htm

From Baidu:

https://baike.baidu.com/item/Little%20Busters!%20EX/5677785

Little Busters! Wiki page

http://littlebusters.wikia.com/wiki/Little_Busters!_Wiki

Producers: VisualArt's, Key, Team Little Busters!, Team Little Busters! EX and J.C. Staff

https://en.wikipedia.org/wiki/VisualArt%27s

https://en.wikipedia.org/wiki/Key_(company)

http://visual-arts.jp/

http://key.visualarts.gr.jp/

http://www.jcstaff.co.jp/

Special series EX consist of 8 episodes that is aired from January to July 2014. OVA consists of 1 episode that is aired in August 2013.

Promo video on YouTube by Vietnam Key FanClub

Opening and ending theme of EX on YouTube by Vietnam Key FanClub

Ending theme of OVA on YouTube by Kun-Lin Jheng

Full ending theme song with lyrics Mezameta Asaniwa Kimiga Tonarini (目覚めた朝にはきみが隣に) on YouTube by Yomogi Mikazuki

Saya's Song with lyrics on YouTube by Pale Crimson

Full version of Little Busters! -Ecstasy version- on YouTube by MiyoRFO

Full review of anime series:

https://www.sinicalanimenetwork.com/single-post/2018/07/01/Little-Busters-EX-and-OVA

iTunes main and app download page:

https://www.apple.com/itunes/