I believe Ouma borderline stomps here.
1. Ouma is superior to 96.76 tons from being a 10th of
this feat. So even through AP that makes it almost a stomp.
2. Ouma's forcefield is what he always starts with and it makes him heavier, and more durable.
Ikki Kurogane's 8-B could BARELY pierce the forcefield and that's with his strongest attack. All other attacks were getting completely negated including ones from
Stella Vermillio before she went balls to the walls with 8-A AP. The forcefield is not a literal forcefield btw, it's just a really REALLY dense layer of air that prevents most attack from reaching Ouma's skin so it can be bypassed with enough AP but it cannot break as the air will reform itself.
3. 8-B explosions are nothing new to Ouma, trust me
Stella Vermillio tried and her explosions far surpass Itsuwa's.
4. If push comes to shove, Ouma will just release the forcefield (Tenryuu Armor) which will release the dense wind creating omni-directional winds which blew away even a 8-B
Stella Vermillio (would have blown her far beyond the ring if the bars hadn't been there), but that's not all. Releasing the tenryuu armor means Ouma just got serious, and by that i mean his stat amp kicks in. He fights in a restricted form due to the dense air he has around him, when that's gone he starts blitzing people who were faster than him like Stella and he also started physically destroying Stella who showed to be stronger than him before this amp (by destroying i mean he literally just started blitzing and kicking her into the walls, a literal stomp until she went 8-A).
5. Under normal circumstances Ouma would usually open up with Vacum Blades (invisible air slashes), so that would take care of the clothing part along with Oxygen Manipulation.
@DT
Nah his barrier is not any higher than 8-B (I mean his barrier is 8-B, likely 8-A same as how his physical stat is, but since we'r assuming 8-B Ouma, his barrier would be 8-B as well).
And a weaker kusanagi would still be usable. Dargoo said that Low 7-C abilities were restricted and as i explained, Kusanagi is as strong as he wants it to be (unless it's the 3rd shot which will be weaker).
I not only vote Ouma, but i believe he almost stomps here. His FAR superior AP (almost 4x) and durability along with the air forcefield basically remove win conditions for Itsuwa. Even her Illusion Manip won't be any good against his oxygen manip (cus he only needs to activate it, not keep it up all the time). That + the fact that a LOT of his attacks wouldn't care about illusions (like defensive wind magic, or tenryuu release). I believe that i've covered all of Itsuwa's arsenal.