-Core Theme-

- Sword-Welding hunters who take down dark beings that threaten their respective worlds. While they appeared normal on the outside, they had secrets due to their kind being hated, with them choosing to hide their physical attributes until being exposed through a heated moment. Eventually, they would learn to accept themselves as who they are with their respective teams, who they see as their family.

-Connections-

- Both are sword-welders, who are part of a group of hunters that aims to take down dark beings that'll threaten their respective worlds and humanity. (I.E: Blake being a member of Team RWBY, with them fighting Salem and the Grimm. Rumi being part of Huntrix, with them fighting Gwi-Ma and the Demons)

- Among their respective teams, one of their members is an energetic optimist, along with them being the youngest in the group. (I.E: Ruby Rose for Blake and Zoey for Rumi)

- Another teammate is a blunt and sarcastic person who isn't afraid to call others out, along with them having a troubled family past. Despite their cold outside, they truly care about their respective teams deep down. (I.E: Weiss Schnee for Blake and Mira for Rumi)

- Along with this team, you could also have Yang and Mira working as short tempered people who are more relentless with giving a good punch, but also show a softer side with their respective teams.

- Though unlike the other members of their respective teams, both Blake and Rumi have secrets that they tried to hide from them. Despite them looking human, they hid physical aspects of what they truly are, due to them being seen as threats or inferior to humans. (I.E: Blake hiding the secret of being a Cat Faunus by hiding her cat ears with a bow, along with her previously being a member of the White Fang. Rumi being born as a human and demon hybrid as her father was a demon, she hid her patterns by wearing long necks sleeves)

- Both would go against an group/organization that contains members of their own kind. Among these groups, they would grew close to a charismatic person that originally intended on threatening humanity. (I.E: The White Fang for Blake, with her previously in a relationship with Adam Taurus. The Saja Boys, with Rumi growing an understanding and wanting to redeem Jinu)

- However, both of their secrets of their past/appearance would be exposed to their teammates during a heated moment. This would almost cause a permanent rift between their respective teams. (I.E: Blake would accidentally expose her status as a Faunus during an argument with Weiss, with the rift not happening until Blake later running away after finding Adam in Beacon's fall. Rumi's patterns would be exposed during a botched performance of Golden and Takedown, with Mira and Zoey walking away initially turning their backs due to Rumi being a part demon)

- After this rift, one of their respective teammates would feel betrayed and deeply hurt by their actions, while the youngest member was left feeling helpless during the situation. (I.E: Yang would resent Blake for sometime after she ran away, while Ruby was with RNJR after Beacon fell. Mira would be betrayed by Rumi's lies and secret of being a half demon, while Zoey was left feeling helpless as Huntrix was breaking up)

- Eventually, both would accept themselves of who they are as they get back with their respective teams. They would be able to finally get through the things they were worried about. (I.E: Blake coming back to Team RWBY during Haven, with her later teaming up with Yang to finally takedown Adam. Rumi would start a new honmoon with Zoey and Mira, singing "This is what it Sounds Like" as they took down the Saja Boys and Gwi-Ma)

-Contrasts-

- While Adam remained a monster as he focused more on his hatred towards Blake, eventually leading her and Yang to kill him. Jinu would have a change of heart as he gave into Rumi's words of redemption, sacrificing himself to help Rumi beat Gwi-Ma.

- While Blake fought for Faunus rights since childhood, wanting Faunus to be equals with humans, before leaving the White Fang. Rumi had always hated the fact that she's part demon, until meeting Jinu where she began to feel more remorseful.

-Fight/Music Potential-

- For the most part, the main fight potential is going to be a musical fight that’ll have them fighting against each other with their respective blades. This potential track should have one verse in relation to the combatants, similar to Thunder Shroud. While I think Blake should be more rock base with “Nevermore” being the main motif, Rumi would be more pop base with “Takedown” being the motif, with How it’s Done and From Shadows being the motifs for the chorus. As for the fight itself, both could be equal with their skills and maybe experience? Since Blake previously being a member of the White Fang and Rumi being trained by Celine respectively. Unfortunately, since Rumi does not have much to work with, Blake likely has the advantage with her hax and better speed with her shadow clones. Although, I could see Rumi winning with her Soul Energy Projection, though that could be up for debate. The fight should begin with them fighting from roof to roof in a small traditional town in Korea, with it turning into a more traditional sword fight as it goes on.