Unless it was LO only this shouldn't be TNK, cuts at the beginning+end are in the gengashuu and the handwriting is completely off from his.

I'd still keep the tag. Schedule for this season was rather rough so TNK not doing his own genga wouldn't be unusual. Has enough of his quirks (smoke and hair) for it to be a reasonable tag. Only other candidate I can see doing this on the KA list is Ebara and he already has a confirmed scene.