You pretty much have to forget about normal SF play when u play Ibuki. Ibuki doesn’t look for the same things Chun Li does when she’s trying to win. At least not in the sense of just staying on your feet and pressing buttons at the person until they die.
You have to understand what Ibuki needs to do to win the fight. Which is basically land untech knockdowns. Your gameplan is similar to Akuma’s in that u want the person on their back at all times. Except this gameplan is even more so important because your footsies are worse than his and you have even more tools to make that happen than he does. Plus you’re a walking anti projectile. It varies exactly how you do it from character to character but the jist is the clear things u want to land are things that lead to untech knockdowns like c.LP, s.LP, s.MK, s.MP, counter hit f+LK (combo into MK tsumuji), level 1 counter hit or level 2 focus attacks, throws, focus dash forward into throws etc. You want to just basically put yourself just close enough to the opponent so that anything u hit them with will end them up on their back unable to tech and the things i listed can lead to that. Once that happens of course that’s when u start your kunai vortex to jab combo or target combo spree and keep that up until they’re dead.
Of course that’s all easier said than done because most of the cast has better buttons than you. Yet you have to remember that it’s really only 1 or 2 real knockdowns Ibuki needs to kill most of the cast. Which is why it’s important to just concentrate on what’s important like I said earlier which is finding the quickest way to put the opponent on their back. Something as simple as landing a forward throw can be the beginning of the end for your opponent so keep that in consideration as you’re fighting. Get in and get them on their back.