I overheard two busty single mothers at my part-time job talking about going on a hot spring trip together. For some reason, they enthusiastically asked me to be their driver, and I ended up agreeing. Chitose-san is always teasing and making fun of me, while Asuna-san is gentle and kind. They're quite the contrast. I secretly have a crush on Asuna-san, but Chitose-san seems to have noticed...