En wa Ki na Mono Aji na Mono

Miyagi is the chief of an old prominent Japanese restaurant. One day, the sister store unexpectedly sent over an apprentice chef named Kasuga for training. After their initial meeting, Kasuga was instantly smitten with Miyagi and sets out to pursue him relentlessly. As Miyagi gets subjected to constant assaults, he finds that his defenses are slowly beginning to crack... Will the headstrong Kasuga finally subdue him? This is a workplace romance served, Tsunoda style!

(Source: Fantasy Shrine)