Team Remix Heart were a group of students that aimed to find the Grimoires scattered across the 15th Hierarchical City of Torifune. It was seemingly disbanded at the beginning of BlazBlue: Variable Heart.
The group officially formed when Mai Natsume, Kajun Faycott, Noel Vermillion, Tsubaki Yayoi, and Makoto Nanaya discovered the Conversion Grimoire hidden in the eighth level of Torifune. Kajun suggested the name, and the group was determined to find the Azure Grimoire in the hopes of curing Mai's super taste.  Finding various other Grimoires which may be able to do the same job was also a priority.
The second Grimoire the group discovered was the Ammit Cryas which was hidden in one of the sealed rooms in the Academy's staff dorms, and they soon turned it over to Estella McKenzie.  The third Grimoire found was the Conversion Grimoire during the sports festival, where it was held in a test by the Guardian - the group passed two tests to acquire it, again handing this one over to the Academy staff.  They believed this Grimoire could cure Mai, but it was unable to. The group won the sports festival MVP title for being the only group which managed to find the object they were tasked with obtaining.
The group found the Regulation Grimoire and restored it with the help of Jin Kisaragi and Taro Sasaga'e. By herself, Mai discovered the Hypnagogia Grimoire, becoming locked within it but eventually fighting her way outside of it when her dream became a nightmare.  Mai accidentally discovered the Aequivalentis Grimoire, which stripped her of her memory before she came to restore it through her own means - Estella later found and confiscated this Grimoire.  Through a tip by Kokonoe (although only Kajun knew this), the group descended to the lower levels in the hopes of finding the Azure Grimoire, but were separated - Noel had brought along several of the Grimoires they acquired earlier to help in this goal. With the help of Ragna the Bloodedge, Mai found the Aedsqui Grimoire, and saved Elina from her torment inside it; it was at this point that she became the Intermediary Grimoire, becoming the final Grimoire that the group discovered. 
In time, the group accepted Shiori Kirihito into their ranks. They were put on duty of watching over an iceberg Jin had created as a form of punishment.  They competed in the survival training exercise together as two separate groups, and defeated the Mountain Jellyfish with their combined efforts.  The final threat that the group engaged with was with Cypher Albar, and both Mai and Shiori managed to stop his plans to kill the population of the Academy City. 
The group was seemingly disbanded when Meifang Lapislazuli forced Kajun, Mai, and Shiori to run away from the Novus Orbis Librarium and be the targets of an international manhunt. The entire group has not been reunited since their first year in the Academy.
- Evolution Grimoire - found in a mansion within the eighth level of Torifune.
- Ammit Cryas - sealed in a hidden room in the staff dorms.
- Conversion Grimoire - held in a lower level desert in Torifune by the Guardian.
- Regulation Grimoire - found in a beach area near Torifune.
- Hypnagogia Grimoire - found in Torifune's library.
- Aequivalentis Grimoire - found on a hillside next to the dorms.
- Aedsqui Grimoire - found in the ninth level of Torifune.
- Intermediary Grimoire - discovered when Mai became the Grimoire.
Events participated in
- Torifune Festival - participated before official formation; Kajun won the title of Izanami.
- Sports Festival - last place but won the MVP award.
- Survival Training - won despite the team being split in two.
- BlazBlue: Remix Heart, Chapter 03
- BlazBlue: Remix Heart, Chapter 04
- BlazBlue: Remix Heart, Chapter 06
- BlazBlue: Remix Heart, Chapter 08
- BlazBlue: Remix Heart, Chapter 09
- BlazBlue: Remix Heart, Chapters 10 - 11
- BlazBlue: Remix Heart, Chapter 17
- BlazBlue: Remix Heart, Chapter 21
- BlazBlue: Remix Heart, Chapter 24