Ichimaizara is a Showa-retro yoshoku diner tucked along a passageway near Toranomon Hills, its walls crowded with old posters, coins, and knick-knacks that regulars pore over while waiting for a counter seat. The tiny 15-seat room fills fast with office workers on weekday lunch breaks. The menu stays deliberately simple: a chef's daily-changing pasta (recent versions include mussel and eggplant tomato sauce, or clam and whitebait oil pasta, with Friday reserved for a rich hand-cut noodle carbonara) alongside the standing favorite, omu-hayashi — a soft-set omelette over demi-glace hayashi rice.
