One -one for all- is the second studio album and first major release by Japanese rock band Fanatic Crisis.

The first edition was housed in a plastic sleeve, and came with a 52-card deck (featuring the band members) inside of a box.

All singles from One -one for all- were included on the re-recording and greatest hits album Tenseism released by the trio in March 2023.

[3] Fanatic Crisis's popularity began to grow in 1996, when the single "Tsuki no Hana" was distributed by a major label.

[4] CD Journal praised the uplifting atmosphere of the album and stated that "hard and flashy songs are conspicuous throughout".