Since I'm not familiar with this fanfiction, it's hard to give a summary. But generally, in such a fanfiction, Naruto, a character from Naruto series, might use his ninja skills to rescue Salum in the RWBY universe. Maybe there are battles, character interactions and new plot developments.
Well, in such a scenario, Ruby might dash in with her speed, using Crescent Rose to fend off the Grimm. She could leap into the air, her red cape flowing, and fire off a few rounds at the Grimm that's about to attack Blake. Her silver eyes might be shining with determination as she focuses on protecting her friend.
One key moment could be when Naruto jumps in front of a fatal attack aimed at Konan. His quick reflexes are crucial here. He takes the hit or deflects it using his own skills, like his shadow clone technique to create a distraction and then save Konan.
Perhaps in this fanfiction, Sarutobi is trapped in a genjutsu created by a rogue ninja. Naruto, being highly resistant to genjutsu due to his Uzumaki blood, manages to break into the genjutsu world. There, he has to fight his own inner demons as well as the rogue ninja's illusions to free Sarutobi.
In a Naruto saves Asuma fanfiction, Naruto could use his new jutsu skills. Maybe he discovers a way to reverse the damage done to Asuma. It could be related to his Sage Mode powers, which he could use to heal Asuma's wounds.
Another scenario could be that the woman is a shinobi from a small clan, but she has been framed for a crime she didn't commit. Naruto, believing in her innocence, saves her from being captured by other shinobi. He then teams up with her to find the real culprit and clear her name. Along the way, they face many challenges together and Naruto's positive attitude helps the woman regain her confidence.
One possible storyline could be that Naruto, with his ability to teleport and his powerful ninjutsu, senses Mikasa in danger in the Attack on Titan world. He quickly arrives, uses his Rasengan to defeat the Titans surrounding her. Then he takes her to safety and they form an unlikely friendship, with Naruto sharing his experiences of fighting for his village and Mikasa being amazed at his powers.
In a fanfiction scenario, Naruto could save Anakin by using his talk - no - jutsu. Naruto is known for his ability to reach people's hearts with his words. He might be able to convince Anakin to turn away from the dark side before it's too late, much like how he's convinced other antagonists in his own universe.