After Ye Tianfan returned to the Taichu Sect, he was summoned by Tian Chu Zhenren. After Ye Tianfan returned the Recording Jade to Tian Chu Zhenren, the latter put it away and called Ye Tianfan to the conference hall!
At this time, the other Sect Leaders were not present; only the elders of the Taichu Sect were there!
Since Ye Tianfan had already informed Tian Chu Zhenren of the general situation, and since Tian Chu Zhenren felt the matter could be very serious, he summoned the other elders to hear the details from Ye Tianfan.
As for why the other Sect Leaders were not brought in, it was because Tian Chu Zhenren needed to hear the situation from Ye Tianfan first before deciding whether to inform the other Sect Leaders!
Moreover, they need to evaluate Ye Tianfan's words and cannot just have the other Sect Leaders come and listen, as the truth of Ye Tianfan's story still needs verification.
