Namameku Koi no Shirushi

Yuki had a crush on Miura, who is kind, handsome, and promised to be the future ace of the sales department. He's good at his job and trusted by everyone. And above all, he always treated her kindly. She felt happy when he told her she looked cute, but it felt like he was just joking because he's nice to everyone... She didn't want to get the wrong impression... One day, he invited her to a drinking party after work, and she couldn't refuse Miura's earnest face. She had been avoiding drinking ever since she got rejected after she drunkenly confessed her feelings to a friend. Yuki won't make that mistake again! But despite her care and Miura's help, she mistakenly drank a whole glass of alcohol...! (Source: Kanon Comics, translated)