Deadline13 is an Japanese metalcore band from Kumamoto, Kyusyu.
Formed in 2008, the group was founded by drummer Tomohisa and guitarist Tak and former vocalist Ota.
Later that year the band became a five-piece after recruiting KTHR on Guitar, Shiro on bass and later that year Ota and Shiro decided to leave the band in 2009 and was replaced with Betti (bass).
Shiro later joined the rock band Karte.
Tomohisa, KTHR, and Betti reassembled the band with new members from the local area, including lead female singer Yukio and Guitarist Yuki in 2011.
Later that year Yukio departed to focus on her new band Browar and was later replaced by Yuki (Vocal).
In 2013 Betti departed to focus on his family life and was later replaced by Law.
KTHR departed from the band, due to his work in 2016.
In January 2017 former vocalist Ota rejoined deadline13 as guitarist following the departure of guitarist KTHR in August 2016.