Requests from the owners of the Chinese restaurant "Ohira Shokudo" in Itabashi Ward, Shigeyuki Ohira (Yukijiro Hotaru) and Yoshie (Narumi Kayashima), come into the "Clear Stream Project". It all started a few days ago. Ryo Arisu (Hidehiko Ishizuka), a ramen critic, has been enjoying tanmen at "Ohira Shokudo", which he attends every month for 20 years, and the couple tells him that he will soon close the shop. Although he is prosperous, he has no successor and wants to retire considering his age. Arisu, who does not want to lose his favorite store, persuaded the couple to ask "Clear Stream Planning" to find a successor.