It's Airi from Blue Archive! This was a mind virus. A raw, completely mind virus. Turns out characters you once thought were a little plain can be the absolute peak of naughty under certain circumstances. This one being her time in the Snack Club has softened up her body and Sensei keeps getting her ice cream treats just to watch her lean forwards to lick the Mint Chocolate... even a sweet girl like her can suddenly be a sultry minx under certain stimuli!
This one's a freebie because it's just the one concept done in as many ways as I can muster!