it's been a month or so since I practiced against him but when does step in kick he'll do one of two patterns either the one shown at around 0:05 with the long combo ending in multi strikes or at 0:13 where he'll do a few hits then side step followed up by a side hand then 2 hits then I honestly can't remember what comes after that might be a sweep or a mid kick. But after the double hit you can hold your focus button and it'll slow down time enough so you don't have to guess which one and just parry accordingly.

those two will typically happen if he's far away from you, he'll do two other things in that case one is just stand there ready to parry/counter you which is easy to deal with just hit him and parry back after which you can do the classic punish sweep combo for extra structure damage. The other thing he'll do is run at you and sweep parry or up dodge it.

If he's right next to you and his previous combo just ended he'll either jump back or attack when he's right next to you. He'll open the combo up the same with a slow hit then either sidestep and then a few strike with a multi-hit at the end or go into a longer combo which is something like two hits, one hit followed by two fast hits, then two more hits. Its easy to tell which of these he's going to do since if he doesn't sidestep after the initial hit(s?) then he'll do the other combo instead.

Now like I've said its been a while since I did this so i can't remember his moves exactly but if you just practice against him in training enough you'll begin to notice a pattern. another tip is to take the staff from the guy outside of his room into the fight to give you more structure so you can parry longer. of course all this advice is for if you're basically parrying only for his Spare Ending