Kimi ga, Onigiri Sukidakara.

Satoshi Shirata is ordered by the company to transfer to Nagoya. The wife, who was left alone in Tokyo, is dissatisfied with her husband's assignment. Her favorite food is rice balls, so Satoshi decides to find a Tokai's region rice ball specialty, that is perfect for his wife.
(Source: Japanese = excite.co.jp || Translation = MDL)