Um... do you have change for 1000 Yen?Do you have a T-point card?Sumireko-chan! Let's exchange friendship chocolates!Sorry... I've never done that before, so I didn't prepare anything to exchange.......Uh, then... that'll be 540 Yen...
She's selling them...
She's buying them...
She gives out T-points...
T-points are related to Japanese retailer Tsutaya but are also usable at other places, most notably Family Mart for this comic.