Well, you could do a crossover where the Danganronpa students are transported to the RWBY world. They'd have to adapt to the Grimm and the Huntsman - Huntress system. Or perhaps create a scenario where the two universes are merged, and there are new rules for survival. The characters from both series would have to form alliances based on their skills and personalities.
How about a Danganronpa and Kingdom Hearts crossover? The Heartless could be used as a threat in the Killing Game, and the characters could travel between different worlds from Kingdom Hearts while trying to solve the mystery. Or a Danganronpa and Naruto crossover. Shinobi skills would change the dynamics of the Killing Game. Characters could use ninjutsu to either kill or protect, and the hidden villages could be the settings for the game.
One idea could be creating an OC who is a master of disguise. They could use this skill to gather information and try to outwit the mastermind. Another idea is an OC with a unique phobia that adds an interesting twist to the killing game scenario. For example, an OC who is terrified of the dark and has to face challenges in a pitch - black area.
One idea could be a crossover where the Total Drama characters are put into the Danganronpa killing game situation. For example, the challenges in Total Drama could be incorporated into the trials in Danganronpa. Another idea is to have the personalities of the Danganronpa characters influence the Total Drama competitions. Maybe some of the more devious Danganronpa characters could come up with sneaky strategies in the Total Drama challenges.
One idea could be a fanfic that explores the backstories of minor characters in RWBY more deeply. For example, you could focus on a character like Velvet and create a story about her training before coming to Beacon. Another could be a crossover within the RWBY universe itself, like a team-up between different schools' teams that we haven't seen much of in the official series.
One popular idea is alternate universes. For example, a fanfic might explore what would happen if the characters were in a modern-day high school without the killing game. Another idea is character backstories. Fans often like to expand on the characters' pasts that were not fully explored in the original game. And relationship fics are also common, like exploring the friendship or potential romantic relationships between different characters.
For a 'rwby breeding fanfic', you might look at the idea of cross - species breeding if there are non - human characters in RWBY. Maybe a Faunus character breeds with a human - like character. This could bring up all sorts of interesting cultural and physical differences in the offspring. The fanfic could explore how the society in RWBY reacts to such cross - breeding, whether there is acceptance or discrimination, and how the characters themselves deal with the consequences of their actions.
One idea could be a fanfic that focuses on creating new RWBY - inspired brand logos for the different kingdoms in the RWBY universe. For example, you could design a brand for Vale that incorporates elements like the white fang and the local wildlife.
Well, you could do a fusion fanfic where the characters fuse due to some ancient magic or a powerful relic. Maybe there's a relic that when activated, causes two characters to fuse together. You could have a plot where the fused characters have to figure out how to control their new powers and how to separate themselves. And they might face challenges that only their combined abilities can overcome, like fighting a super - powerful Grimm that normal teams can't handle.
One idea could be to explore the backstory of a minor villain. For example, the White Fang members. You could show how they were recruited, what drove them to join the group. Maybe they had a family that was wronged by humans, and this led to their radicalization.
Well, a cool RWBY Shower Fanfic idea could involve a team bonding moment in the showers. Maybe the whole team is in a communal shower area (in a non - inappropriate way) and they start sharing stories and secrets. It could be a way to show their deeper relationships. Also, a fanfic could focus on a character like Nora, who might be singing really loudly in the shower, much to the amusement or annoyance of the others. And for Ren, it could be about him using the time in the shower to practice his calm and meditation, but getting interrupted by Jaune's clumsy entrance.