- 2013 - 2017
- KRASTERII official website
- Vocal, Pop, Rock
- 羽丘 淳 (Atsushi Haneoka) — arrangement, lyrics, vocals, mix, mastering (YouTube)
- Former Members
- Ne;on Otonashi — lyrics, vocals, illustration, design, retired as of Reitaisai 13 (2016-05-10)
Formerly known as Kraster. In contrast to their previous iteration, this circle did not create any new songs featuring , and had relatively few songs with vocals by Ne;on Otonashi, instead focusing on vocals by . When Ne;on left the group at Reitaisai 13, a compilation album featuring most of her solo songs (THE Ne;on STREET) was released. Afterwards, the circle focused on compilation albums spanning the entire discography of Kraster and KRASTERII. It released its final albums at Autumn Reitaisai 4 (2017-10-15): one compilation album (The Finale), and one new Hidden Star in Four Seasons album (東方天アンビシャス). On 2017-11-16, the circle officially disbanded. Following this, both the KRASTERII Twitter account and 羽丘淳's personal Twitter account were deleted.
In October 2018, 羽丘淳 formed ARCARADIO, a circle that made original songs. He removed the KRASTERII videos from his YouTube account and used kraster.jp to promote his new ARCARADIO songs. After ARCARADIO disbanded on 12 January 2019, kraster.jp was removed. As of January 2019, the only remaining Kraster/KRASTERII site is their Soundcloud page, and even that is missing many crossfades for old albums.
- RDD/Eternal Fidelity released 2013-10-27 (M3-32) is an original album featuring vocal and instrumental compositions, it notably features 2 versions of the opening theme for 執事が姫を選ぶとき by PeasSoft.
- 恋する姉妹☆ラ☆六重奏 released 2014-12-29 (Comiket 87) is an original album featuring vocal and instrumental compositions, it notably features 2 versions of the opening the for 恋する姉妹の六重奏 by PeasSoft.
- Ne;on Lasting Best -LOVE- released 2015-12-30 (Comiket 89) is an original compilation album featuring vocal compositions originally released on the albums RDD/Eternal Fidelity, 恋する姉妹☆ラ☆六重奏 and Loretto Chapel by Kraster. The album also featured 2 compositions from PeasSoft games not featured on the previous albums.
- 夜奏撃ヒステリア released 2015-12-30 (Comiket 89) is an album featuring instrumental and vocal arrangements of themes from Kantai Collection.