NEMOUSU秘OUS

NEMOUSU秘OUS (called on the JASRAC database) is Disc 1, Track 15 on the XenobladeX Original Soundtrack. It consists of two parts: the first part plays from the start until 2:50, and the second plays from then until the end.

The first part of the track plays when Elma awakens her original body in the Lifehold Core in. The second part plays in the following cutscenes:
 * Elma explains to Cross the mission of BLADE at the start of.
 * Irina requests to join up with Elma's team for a mission during Renewed Will.
 * Lao's team discusses him with the party at the end of A Friend In Need.
 * Lin talks about the White Whale's departure from Earth with Lao in.
 * Doug talks about his past with Lao during Close Comrades.
 * debriefs the party at the end of.
 * The party observes and airs ideas on how Shingo can woo her during The Matchmaker.
 * Lao joins in with helping Shingo out during the same quest.
 * The party and Lao observe Dorothy and Shingo talking at the end of the same quest.
 * Celica catches up with the party shortly after she and Rock are invited to New Los Angeles during Manhunt.
 * Mathias tells the party about his missing cat during Nine Lives.
 * Elma suggests the party engage in mock combat against Gwin during Boot Camp.
 * Doug is convinced into eating with the rest of the group at the start of.

Etymology
Translating this back into Japanese gives 神秘的, 'Shinpiteki' (hence the JASRAC version of the title).
 * 'Ne' is written as 'ネ' in katakana.
 * 'Mousu' is written as '申す'.
 * Combining ネ and 申 results in the kanji 神. This can be combined with the '秘' in the title, resulting in 神秘, 'mystery'.
 * Adding the 'OUS' at the end of the title results in 'Mysterious'.