Hakata Motsunabe Oyama Shinjuku Odakyu Halc is a motsunabe restaurant on the basement floor of Odakyu Halc in Shinjuku, serving offal hot pot in miso and soy sauce bases. The mentaiko set comes with motsunabe, mentaiko, salad and side dishes, and finishes with champon noodles. On weekdays between 5 and 6 p.m. you can walk in without a reservation, but after 7 p.m. on Fridays the seats fill up, so booking is advised. There is no elevator down to the third basement level, so strollers must be carried down the stairs, and the broth is salty and grows saltier as it keeps boiling, so add water or eat it with rice.