Tsukishima Monjayaki Umaiuma Yotsuya Sanchome is a monjayaki restaurant on the seventh floor of a building a short walk from Yotsuya Sanchome Station. It serves mentaiko cheese monja, seafood cream monja, and omelet yakisoba, and staff cook the monja on the griddle in front of you. The interior has a Showa retro look with old songs and posters, seating is mostly sofas, and mobile ordering is available. On a Sunday evening the restaurant was full for walk-ins, so reservations are needed at weekend peak times.