Mog Kupon I-Seal L Where To Get It?

So after farming some seals for my Empy armor, I find out that there is an item that grants you all your needed seals. This time will greatly help me gear some jobs. "Mog Kupon I-Seal" is apparently granted by login-points, but I don't remember any recent login-event whereas it was an option; unless I just didn't notice.

So where can I get the seal? Just wait for another login-event with it active?

It only comes from the login event and bonanza (rarely, they've had it off login for an extreme amount of time) and the lesser BC orb event that uses KC and HKC. When the BC event comes, you can get a ton of them quickly as they're near 100% off each monster.

If you need the gear in a hurry, gotta farm the slips unfortunately.

You're in luck - based on dev posts on the JP side of the official forum, it sounds like Kupon I-Seals will be included in the February login campaign.