Here I am.
1. That Range is elusive, since as I've shown in past threads he can AOE giant peops.
2. Nonon is severely outskilled. Over 500+ years of fighting experience from a guy who also has a feat of defeating another channeling around 2000+ years of fighting experience of multiple souls at once , case in point being E.
3. That's without mentioning Fumon Tonkou, which can read what Nonon is about to do directly via reading/feeling the pulses of her energy, unless she lacked a soul/spirit/energy or something.
4. She loses in stamina as well. This is the guy who in a key with far less spiritual power (300ish to the 55000 here) fought an army of undead , got beaten up by his dad , was kept in priso in poor conditions and tortured for 10 days along with his sister who is basically fodder to him in this key but endured being locked and tortured for 20 days as well , got up and immediately went to fight said dad agai and immediately fodderized the Jiang Si who had tortured his sister along with Yoh in a single blow, as if he was in top conditio (note that undeads of similar level had been stalling other party members for a while before this), got beaten up for a bit by Shao Wen (the strongest undead around at the time), got up again, went on to finally fight against his father in an even harder match due to his regenerative Oversoul that involved his entire body like a giant and defeated him by the end of the day without stopping for a minute to rest. Note that Yoh and co. helped Ren in the first phase of the fight , but Ren was the one who single-handedly defeated his father once he activated the Daidouhou and the Daidouryu which was his strongest Oversoul and Ren mocked it then proceeded to defeat it . Ren's father that is also far weaker than the Ren in this current key (since he got fodderized by Mikihisa) kept his Oversoul going for literal years.
5. Flight is not too much of a problem since Ren can levitate, propel himself in the air like a rocket by using his Oversoul with no waste of energy freely fight while riding it , or ride it around the air even if it's not as totally freely as with the Spirit of Thunder . He can also predict her moves to better react and approach. Later in the series and in the key here the boy freely maneuvered in the air around and avoiding energy beams somehow without even needing to summon a body for his oversoul per se.
6. Her uniform doesn't have non-physical interaction as far as I'm aware so she can't count on blocking or intercepting his attacks with its defenses. If Ren uses a Togenkyo it will phase straight through and hit Nonon directly. Actually, literally *any* of his attacks will phase straight through her defenses and hit directly unless she had Non-Corporeal interaction.
7. Taking into account that he outskills severely without even counting Fumon Tonkou, had the stamina to stay fighting for extremely long even in an extremely beaten up and outright post severe torture condition in a key with a measly 300ish Spiritual power as compared to his 55000 that he has on this one, and that he can pursue enemies in the air by using his own Oversoul as a rocket or something to ride in, it feels to me like Nonon is the one who gets hard countered here as opposed to her previous matches which means he definitely is getting all the hits he needs before he goes down himself.
8. Togenkyo will absolutely wreck here since it can AOE giant peops and it will phase through the uniform and Nonon is definitelly not keeping distance from Ren for days on end given the skill gap + stamina gap + move reading factor + he isn't a stationary target in the ground without any proper means of air mobility like her prior enemies.