There was only one reason for Jin to try to form a connection with the Crimson Clan; the Asian Alliance.
The division with whom Jin was connected was asking for the Teleportation portals, and sooner rather than later they would ask for its power source as well. After all, no one other than Jin knows the range of their greed.
As such, Jin has to prove his worth to be a main body in the Asian Alliance by suppressing the Heavenly Sect. And for that, he would need the support of the Crimson Clan.
Once he acquires a seat in the Council, he no longer would be forced to reveal his secrets, and there won't be anyone to snatch his Rena away from him.
So to make everything right, he needs to focus on this meeting and negotiation. Other than Rena he was prepared to bid everything to gain the support of this clan.
"We are here," The vice-commander of the Crimson Claw voiced as the airship descended toward the main headquarters of the Crimson clan.
