Oresama Fukushachou no Kiss wa Choco yori Amai

Misuzu has started working for a chocolate company. Her first impression of the pompous-seeming vice-president is the worst... but she is touched by his sincere attitude towards work, and she finds herself at the mercy of the sad expressions he sometimes shows...? The vice president's sweet kisses never stop!

(Source: Kodansha, translated)