White curtains swayed in the breeze, and the languid, bright morning light passed through the study window and fell on Uchiha Naruto.
"The second worldline simulation went unexpectedly smoothly. Toru Yamashita accepted without any suspicion that he had reincarnated three years into the past, along with half-true, half-false memories of the next three years."
Seated at his desk, Uchiha Naruto twirled a pen between the fingers of his right hand, stopping from time to time to record something in his journal.
"Intense combat produces immediate improvements in ninjutsu proficiency. In Toru Yamashita's battle against Senmon, his progress in Magnet Release exceeded the previous two months of training. This must be what they call an explosive power-up. Toru Yamashita has a bit of protagonist plot armor."
Uchiha Naruto propped his chin on his hand, thought for a moment, and continued writing briskly.
"In the first worldline simulation, Toru Yamashita was given no such memories or combat experience. Just as in the real worldline, he trained in Magnet Release step by step, ultimately reaching LV3 (10/1000). The settlement reward was only 150 points."
He stopped writing, a thoughtful look appearing in his eyes, before his pen began spilling words smoothly across the page again:
"This time, however, I grafted memories of the next two years onto him, let him learn about the lover he would meet a year and a half early, and fabricated an apocalypse for the year after Severing the Connection Between Earth and Heaven to heighten his sense of crisis... He pushed past his limits to protect his lover and trained hard. This time, his Magnet Release reached LV3 (120/1000), nearly doubling the proficiency gained."
After finishing this observation log, Uchiha Naruto read it through from the beginning. Only after confirming that he had overlooked nothing did he add