Info) The current 120 million download gacha has no guaranteed pull.

If you're aiming for Rokkomi, it seems like using your Retti would be a good idea. Save your Cans for the upcoming Rurouni Kenshin and other collaborations (Saito Hajime is broken, so you should definitely pull for him..!). ※If you're looking for guaranteed pulls, they will be available after October 16th, so start using your Cans then.※