Cosmicx said: That was a body swap rather than an illusion
I think he means the part when Riffle was visiting, and Kori was pretending to be Tiko.
It was established earlier in the series that spirits can temporarily change their appearance more or less at will; however, these changes only last a few minutes at most, and are limited to minor details like clothing. Making themselves appear human-sized would take a bit more doing, and is an entirely separate trick.
And what about the real Takanashi?Okay, okay... we won't force it out of you...Wouldn't it have been easier to just have taken my word for it?It's ComplicatedIt's complicated...There is a Difference*poof**bow**shiver*I do very sincerely apologize for deceiving you all...But why is a spirit like you going to school?Nononono! It's the truth this time!Riko! Miss Kori is telling you the truth!Tiko?We spirits are able to see through the illusions created by another spirit's power...haah...I never thought there'd be spirits here, too... what a perfect miscalculation...Allow me to reintroduce myself: I am Kiyomi Takanashi's spirit, Shian.It's complicated!...but I think she may be using an illusion to make her appear human-sized to humans...Sheesh, if you gotta lie, you could at least try and make it plausible...You're really a spirit!?umm...