A possible concise summary is:
Brute and Saco travel to the past and meet young Naruto and his friends. They face a girl, a powerful enemy who can rewind time and wants to steal Naruto's chakra. They manage to defeat him with the help of Jiraiya and Minato. They return to their time and appreciate their family and friends more.
Here are the key facts extracted from the text:
- 1. A girl is a ninja who came from another village to steal Naruto's chakra, which is related to the Kyuubi.
- 2. Naruto and Brute are father and son who traveled to the past with Jiraiya and Sakura to protect Naruto from a girl.
- 3. A girl has the power to rewind time and see the future with his eyes, which he calls the birdman.
- 4. Naruto and Brute trained together to create a joint technique using their wind chakra and the Kyuubi's power.
- 5. Naruto and Brute defeated a girl with their joint technique, but Brute was left with the karma mark for defeating him.
- 6. Jiraiya decided not to erase Naruto's memory of meeting his future son and his friends, saying that he likes surprises.
- 7. Naruto received a gift from his future son, which was instant ramen and syracuse.