In this fanfiction scenario, Naruto might use his natural empathy. He could start by simply listening to the ANBU's experiences during the mission. Naruto has been through many tough battles himself, so he can relate. He might offer words of encouragement like 'You did your best, and that's what matters.'
Naruto may also try to make the ANBU laugh. He could tell some of his silly jokes or funny stories from his adventures. Laughter is a great way to relieve stress, and in the context of this fanfiction, it would help the ANBU to relax after a difficult mission. For example, he could tell the story about when he accidentally turned into a girl due to a jutsu gone wrong and the hilarious situations that followed.
In this fanfiction scenario, Naruto might use his unique abilities like the Rasengan to heal the ANBU members. His chakra control, which has improved over time, could be used to mend their wounds. Maybe he also shares some of his Nine - Tails' chakra to boost their energy levels.
One possibility is that Naruto could teach the ANBU some new jutsu. He has learned a lot from different people, like Jiraiya. So, he could pass on some of that knowledge to make the ANBU more powerful. For instance, he could teach them some of the toad - related jutsu he knows.
Naruto could assist the ANBU in analyzing the events of the child mission more thoroughly. He might notice some details that the ANBU overlooked. His fresh eyes and unorthodox thinking could lead to new insights. Also, he could offer emotional support to any ANBU members who might be struggling with the aftermath of a difficult mission. His own journey of facing hardships and coming out stronger could serve as an inspiration for them.
He would probably interact with the ANBU captain. This person is in charge of the ANBU operations and Naruto could offer his help directly to the leader. The captain might be initially skeptical of Naruto's abilities but gradually come to respect him.
Naruto's adaptation to the Anbu in this fanfiction could be a complex process. At first, he'd probably struggle with the strict discipline and the need for secrecy. But his previous experiences in tough situations would come in handy. He'd gradually understand the importance of stealth and how to use his skills in a more covert way. He might also learn from the more experienced Anbu members, and his own determination would drive him to become a valuable part of the Anbu.
If Naruto joins ANBU after the war in fanfiction, it could lead to some interesting character developments. He would have to deal with the darker side of the ninja world that ANBU often encounters. This might make him more cynical or, on the contrary, he could try to change ANBU from within. He'd be able to use his Uzumaki powers and his Sage Mode in more covert operations, which would give Konoha a huge advantage. Also, his relationship with other ANBU members would be complex. Some might respect him immediately because of his war hero status, while others might be skeptical of his more open - minded and friendly ways.
One possible plot could be Naruto facing the internal politics of ANBU. He might struggle to adapt to their more secretive and sometimes morally gray operations compared to his usual straightforward ninja way. For example, he could be assigned to a mission where he has to spy on a former ally, creating an internal conflict within him.
Naruto has a big heart, so when it comes to comforting Yugao in the fanfiction, he may use his positive energy. He could offer her a friendly smile, a warm hug, and tell her that she's not alone. Naruto is known for his ability to connect with people on an emotional level, and he would likely bring that out when consoling Yugao. Maybe he'd take her to Ichiraku Ramen to cheer her up, a place that always seems to lift his own spirits.