Seiji decided against contacting the 7321 faction.
Although Shigure Tendo's grudge against him was an important factor, the main deciding reason was that there was no concrete or known way to defeat the Revenge Alliance right now.
Although Seiji obtained a new ability, the rune from Risa Kobayakawa, which might be useful against the Revenge Alliance, he still had no clue how to use it yet. In such a situation, it would be quite difficult to discuss specifics on how to cooperate with the 7321 faction. Plus, this also might elicit a response from Kanzaki.
Time passed just like that.
In the end, Kanna and Izawa refused to surrender without even fighting. They were determined to remain.
Seiji didn't say anything else regarding their choice.
It was now time for the tournament to begin with the contract ceremony. After all the tournament participants had their equipment inspected, they were then led to the contract ceremony building in succession.