The reason behind this matter is not particularly complicated. Although Rozen was willing to take the risk to witness Izanagi's arts, he is not an impulsive person and made thorough preparations.
For instance, to avoid detection by the guards of the Akabane clan and Izanagi's Onmyojutsu practitioners, Rozen applied a layer of "Magic Defense" barrier on both himself and Raishin.
Skills like "Heaven's Eyes" rely on feedback from magic. Once the released magic touches an object, it immediately reflects back to the caster, providing them with information.
By placing the "Magic Defense" barrier on their bodies, it significantly reduces the odds of them being discovered by the "Heaven's Eyes".
Rozen and Raishin successfully evaded detection. Additionally, Rozen fully utilized his "Heaven's Eyes" to avoid encountering anyone and even used "Telekinesis" to make their footsteps lighter and reduce noise. He combined "Heaven's Eyes" and "Rigid Body" skills to take unconventional routes, such as climbing over walls and avoiding sensitive areas protected by strict barriers and guards.
With extreme caution, they finally arrived at their destination: Izanagi's practice grounds. Similar to the Akabane clan's puppet training, the Izanagi clan also has a place for practicing and honing their Onmyojutsu. Large and powerful families inevitably require spacious training areas to cultivate and pass down their secret arts.
In Chaldea, magus also need their own workshops. These places serve as both research laboratories for magic and protective shelters to prevent the theft of their magical achievements.
Therefore, just like the Akabane clan, the Izanagi clan must have a training ground within their family and wouldn't openly display their inherited secret arts outside.
In order to achieve Rozen's goal of glimpsing into Izanagi's Onmyojutsu, he had to find such a place. It was quite simple since "Shikigami" are entities born from miasma. By locating an area with dense miasma, they were likely to find the training ground.
Rozen used his "Heaven's Eyes" to survey the entire Izanagi clan's residence and eventually found the practice grounds. There, he observed the young generation of the Izanagi clan practicing Onmyojutsu, and even witnessed the elder Onmyoji personally instructing them. Rozen was completely engrossed in the scene, enjoying every moment, until Raishin, who got bored, pulled him away reluctantly.
Throughout this process, thanks to Rozen's caution and preparations, they remained undetected, and they safely returned to the Akabane clan's base.
However, Rozen could not have foreseen that while they were sneaking out of their base, someone else had sneaked into the Akabane clan's territory and blocked their way. Rozen had no idea how these two ten-year-old kids managed to infiltrate their base, but their intentions were clear – provocation was their sole purpose.
To make matters more complicated, these two troublemakers had quite an exceptional background. The robust young boy on the left was Kamo Subaru, the heir of the Kamo family, second only to Domon within the Izanagi clan. Among the young generation, he held the highest status next to Domon Hinowa. If Hinowa were to inherit the Izanagi clan in the future, Kamo Subaru would undoubtedly become her right-hand man, serving her from a young age as her attendant.
The slender boy on the right is named Yuge Mutsura and as one can imagine, he is the heir of the Yuge family and the son of Yumiya, who had been receiving the Akabane clan. Just like Kamo Subaru, he is serving Domon Hinowa as her attendant.
Their reason for coming to provoke Rozen and Raishin was because they learned about Rozen and Raishin's intentions towards Domon Hinowa. They taunted them, saying, "A mere member of a mercenary family want to marry our young princess?" and "One is a non-blood-related adoptee, and the other is a talentless waste?"
It was based on these reasons that Kamo Subaru and Yuge Matsura deliberately came to confront Rozen and Raishin.
If Rozen and Raishin hadn't sneaked out initially, they could have stayed inside the room until the guards of the Akabane clan noticed the disturbance and came to resolve the situation. However, the two of them had already left the room, and upon returning, they coincidentally ran into Kamo Subaru and Yuge Matsura.
Subsequently, Kamo Subaru and Yuge Matsura continuously provoked them, causing Raishin's anger to escalate to the point where a fight seemed imminent.
Rozen felt helpless about the situation and knew that even if someone discovered the commotion, there wouldn't be any significant consequences, as it involved the offspring of two prestigious clans within the Izanagi family. He assumed that they might go and consult with their head, Akabane Kuukan.
Based on Akabane Kuukan's personality, Rozen could already guess what decision he would make. He would likely consider it as children's mischief and let them handle it themselves.
Rozen thought that involving the adults could lead to a full-blown conflict between the Izanagi clan and the Akabane clan. But if it is only a conflict between childrens then there will no no problems.
So that no matter how big the conflict grew, it'll only be considered as children's mischief.
"A group of cunning old foxes, I curse you to choke on mochi and reach the land of enlightenment!" Rozen cursed with extreme malice in his heart.
In the midst of this situation, Rozen noticed a young girl in traditional attire hiding behind a wall nearby.
"It's her...?"
It was undoubtedly Domon Hinowa, with a look that seems like she wants to come and stop them, but was too afraid to do so.
Rozen was surprised that she had also sneaked into the Akabane clan's territory.
He considered this a good opportunity and decided to step in. He held Raishin back from engaging in a fight with Kamo Subaru and Yuge Matsura and asked them,
"Have you sought permission from your young lady before comming here?"