H3AV3N VS H3LL

H3AV3N VS H3LL (Heaven VS Hell) is a Japanese idol group themed around cosplay and voice acting.

H3AV3N VS H3LL made up of the main group three units and smaller groups and duos that are all centered around different types of concepts relating to Supernatural terms.

The group was originally managed by K-Sims Entertainment, its still unclear if K-Sims is managing them or if Mnemosyne Entertainment is managing them now. K-Sims Entertainment released a statement on November 12, 2019 stating that they were in talks with Mnemosyne Entertainment to Co-manage the group.

History
On October 18, 2018 Lee London CEO of K-Sims Entertainment announced they would be debuting a new experimental group.

"The groups main goal is to to be idols, but they will gain experience in voice acting, cosplay, and illustration work. The group will have one main group and several smaller units withing that main group. The groups will be made up of girls and boys the youngest age starting at 14 and the oldest being 28. Older Members will graduate from the group and ''newer members will be added." ''

2018–2019: D3VIL teaser and regrouping
On October 20, 2018 K-Sims Entertainment released a trailer introducing members of H3LL line-up aka D3VILS. When the video was posted it was revealed that five of the members of the group were former members of fourdust a dancing group. In the video they revealed that the members also had new stage names they would go by. Akiko's new stage name was Lilith, Kimiko was Lamia, Naoko was Batibat, Natsumi was EVE, and Shiori was Empusa, along with the video was music which fans guessed was a hit toward the type of music the group would be releasing, it was also the song the unit was supposed to debut with.

A few months after that on February 6, 2019 it was leaked that K-Sims Entertainment had already finished music videos for the D3VIL line and the ANG3L line and was going to release the ANG3L line teaser video but it got canceled. Fans started to formally request information from K-Sims entertainment wanting to know what happened and why they weren't releasing anything past the D3VIL's teaser video. On February 27, CEO of K-SIms Lee London released a statement saying that while filming for the H3AV3N VS H3LL music video several of the members got into a fight and they had to be forcefully separated. London Lee decided to cancel the music video half way through and sat down with everyone in the group and told them if they couldn't work together they would be released from their contracts. She gave them a week to think about what they wanted and when that week was over several people had left the group from both the A3NGEL and the D3VIL side. She said that when talking to the ones that still wanted to be in the group she made it clear to them that they would be regrouping and adding new members to both side and possibly a third unit to the group. She also revealed that they would all be living together in one of her buildings and that they had three weeks before she would call them back to her office to meet everyone. She told them that if during that time they decided they wanted to leave the company, the group or if they wanted to switch sides that would be the only time they could for the next few years, because after that they would all sign new contracts.

London Lee said that the members that stayed have not gotten into any fights since she sat them down, and that in the next few weeks they would all start training again with the new members and the new unit. She expressed that while the group was preparing to officially debut as a whole and in the three main units they would also be doing a crash course in the LAVVD program. In her statement she said that anyone that passed the LAVVD program would debut with the group and the units in 2020. If they didn't pas then they would retake the programs they didn't pass and depending on those outcomes they would either be added to the line up or removed from the roster and put back as trainee.

On March 5, 2020 K-Sims Entertainment started releasing the profiles of the members that passed the LAVVD program and would be debuting in the groups. They also shared that each group would have their own mascot.

Members
''Note: Join dates refer to members that passed the LAVVD program. Members must pass the LAVVD program before debuting in the group.''

ANG3L Team (Mascot Navi)

 * Yanome Miyu (Zuriel)
 * Namizaki Himeka (Sariel)
 * Aikawa Ayano (Uriel)
 * Yamashita Honoka (Zadkiel)
 * Yoshizawa Ruri (Cassiel)

GA3A Team (Mascot Humi)

 * Jinguji Yuta (Abel)
 * Abiru Natsumi (Elisabet)
 * Terasaka Hiroki (No'ah)
 * Ono Miku (Judith)
 * Tanabe Ami (Magdalina)

D3VIL Team (Mascot Luci)

 * Yukawa Ayame (Joanna)
 * Terada Akiko (Lilith)
 * Hashimoto Shiori (Empusa)
 * Sekiya Naoko (Batibat)
 * Sekiya Moeko (Lamia)
 * Ayase Miku (EVE)

Former Members

 * Nagase Kimiko (Lamia)
 * Hirano Natsumi (EVE)
 * Watanabe Karin (Zuriel)
 * Sugawara Rio (Uriel)
 * Watanabe Toko (Cassiel)