{{Circle
| arrangement =Y
| name        =ジャク
| name_en     =Jaku
| logo        =
| intro       =
| dates       =2014 - present
| url         =http://jaku.ho-zuki.com/index.html
| genre       ={{Genre|Vocal}}, {{Genre|Rock}}
| members     =
:RAT1959 — Arrangement, Lyrics, Guitar & Drums programming
:[https://twitter.com/buoy_bass buoy] — Arrangement, Bass, Guitar & Drums programming

| description =[[File:PRAY_sample.ogg|thumb|"[[Lyrics: PRAY|PRAY]]" from the albums [[PRAY]] & [[INVERT]] featuring RAT1959 on guitar, buoy on bass and {{lang|ja|マテ茶ん}} on vocals.]]Jaku is a Touhou doujin music circle who primarily arrange themes associated with the amano''jaku'' [[Seija Kijin]]. Music by the circle is arranged and preformed by members RAT1959 & buoy with guest vocals being contributed by {{lang|ja|マテ茶ん}} & Riku. Planning for the circle is done by [[Sally]] members {{lang|ja|ワニ}} and NSY with {{lang|ja|ワニ}} handling general assistance and promotion while NSY handles the Mix & Mastering for the music.

| album1  = {{DiscographyItem|PRAY|JS-00.jpg|2014-08-16|Comiket 86|A vocal and instrumental album featuring arrangements from ''[[Impossible Spell Card]]''. It is a short 3 track album featuring 2 songs that would appear on the album [[INVERT]] in addition to one instrumental version.}}

| album2  = {{DiscographyItem|INVERT|JA-01.jpg|2014-11-24|Autumn Reitaisai|A vocal and Instrumental album featuring arrangements from ''[[Impossible Spell Card]]''.}}

| additional_sections =
}}