i believe that IS a corner combo but i haven't done it myself. i'm pretty sure it's just j.2c, j.5c so there's no jump cancelling involved. (how can there? you just air dashed D:)
and after that you do hotaru, and then j.C
that's how i think of it at least.
edit: i dunno if someone else mentioned it qwerty mentioned on srk that after tsubaki falling B will allow you to hit them when they're flat on the ground, and when you land you can do 5b and they'll be popped up again and then you can jump cancel into B and then again into C. a fun combo i made up was (unless it's already on the combo page? o_o probably not because it's crap damage) 5c > renka (both hits) > 2c > jump cancel > j.B > jump cancel > j.C > tsubaki > falling B> land> 5b> jump cancel > j.b > j.c> hotaru> j.C
It's 7 stars for like 5000 damage or so but it looks super cool if you pull it out in a match. Of course you have to be in a corner, and i would rather just do renka to double zantetsu stuff :P