|April 15||Blu-ray / DVD『DOCUMENTARY FILMS～WORLD TOUR 2012～「Over The L'Arc-en-Ciel」』Released|
|June 19||『L'Arc～en～Ciel LIVE 2015 L'ArCASINO』confirmed！|
|August 21-||hyde joined to "Coca-Cola Art Slim Bottle Charity"|
*"Art Slim Bottle Charity" is a big event which Coca-Cola Japan cooperated with Isetan Mitsukoshi to commemorate 100th anniversary of "Coca-Cola" bottles.
* Celebrities created artworks which used Coca-Cola slim bottle as a motif and displayed various areas is Japan.
|September 14||L'Arc～en～Ciel LIVE 2015 L'ArCASINO official Twitter account is opened|
L'mobile『L'Arc～en～Ciel LIVE 2015 L'ArCASINO』 special promotion is started
|September 21-22||L'Arc～en～Ciel LIVE 2015 L'ArCASINO』|
This Live performance was held at Yumeshima, where is located t o float on Osaka Bay and 100,000 audience in 2 days.
The Thrilling Special Event Space combined Live and Amusement., including the area was 5 times as large as Tokyo Dome and 400 tents in the Venue.
The length of stage passage was around 300 meters from main stage to sub stage, and 2,000 fireworks were set off in 2 days.
The performance n September 22nd, was live broadcasted in 39 theaters all over Japan
（On September 22nd, the live broadcast was held in Hong Kong, Taiwan, Singapore, Thailand, Indonesia, Philippine, U.S, Mexico, Peru, Chili, Columbia at a later date)
|September 23||TV performance TV Asashi's "MUSIC STATION ULTRA FES 30th anniversary"|
|October 29||Limited color of L'Arc～en～Ciel×BEAMS Collaboration T-shirt started to sell on online shopping site.|
|November 21||TV O.A WOWOW Prime「L'Arc～en～Ciel LIVE 2015 L'ArCASINO」|
*Live performance on September 22th is broadcasted exclusively by WOWOW
|November 25||Hi-Res Tasting Spot「L'Arc～en～Ciel LIVE 2015 L'ArCASINO」High Resolution Audio pre-audition is started.|
（Ginza Sony Showroom / Sony Store Nagoya / Sony Store Osaka / electronics retail store in all parts of Japan)
*This is the first time for L'Arc～en～Ciel to deliver "Live truck High Res distribution" It became possible to enjoy live truck with high sound quality more than ever.
We can deliver "feeling presence of L'Arc-en-Ciel Live performance since it is High Res"
|December 23||New Single『Wings Flap』is released|
New Single「Wings Flap」Music Clip is fully shown only 24 hours by GyaO!
New Single「Wings Flap / L'Arc～en～Ciel LIVE 2015 L'ArCASINO Live track High Res distribution is started
|December 25||TV Performance TV Asahi's「MUSIC STATION SUPER LIVE 2015」|