[Shin Henshin]

I think Tokime's change comes from her realizing Shotarou actually can be trusted and isn't just another person falling for her because of her looks. Their talk at the fountain before being confronted by Road Dopant definitely felt like a realization moment for both of them.

This episode had all the beats of a W episode down to a tee. Shotarou not wanting to do his client a disservice, him and Philip getting into a married couple spat, the red herring with the landlord not actually being the Dopant despite it feeling like he was, they know exactly what they're doing.

And seeing Akira again was a shock. Also puts into perspective how much time is supposed to have passed between W's finale and the start of this considering he was a grade schooler there and is now a middle schooler here. Same with the tease of Accel Boost in the OP.