OxT provides the opening theme song Clattanoia for anime Overlord (オーバーロード). They unveiled a preview music video and full size jacket cover for their 2nd single. The single comes on one CD-only edition hitting stores August 26th 2015.

Unit OxT is formed by composer/producer Tom H@ck and singer/songwriter Oiishi Masayoshi (大石昌良). They originally debuted as Tom H@ck featuring Oiishi Masayoshi providing opening themes for anime Ace of the Diamond season one. As unit OxT they released debut single KIMERO!! on May 20th 2015 with tie-up as the ED1 for season two of Ace of the Diamond.

Tom H@ck (Oshima Tomohiro, 大嶋 文博) (29) has composed/arranged numerous anime tied songs including many songs for hit anime K-ON!. Collaborations include artists SuG (29 songs), Aya Hirano, Faylan, Yoko Hikasa, and others.

He also combines with new vocalist Mayu forming unit MYTH & ROID with their debut single L.L.L. featured as the anime’s ending theme (more details).


Anime Overlord (オーバーロード) adapted from light novels by Maruyama Kugane is set in the 22nd century where virtual reality gaming has taken over. Yggdrasil a popular online game suddenly shuts down but one player Momonga doesn’t logout.When the game comes back up Momonga is transformed into Skeletor a powerful wizard. Many aspects of the game changes and Momonga strives to take over the new game world.

The anime started July 7th 2015 on AT-X and July 8th 2015 on Tokyo MX in Japan and provider Funimation.com streams for North America.

Single Clattanoia comes on one CD-only edition (details subject to change). Full track list and additional details coming!

Preview music video and anime trailer after the release details.

OxTClattanoia – release date August 26th 2015

Regular [CD] (¥1200)
1. Clattanoia
lyrics: hotaru, composer: Oiishi Masayoshi, arranger: Tom H@ck

2. undecided
3. Clattaonia (off vocal)
4. undecided (off vocal)




Overlord anime official site

Oiishi Masayoshi official site

OxT official site

MYTH & ROID official site