A note on the words: otoshi is a small starter you’re automatically served and charged for — it’s the cover charge, not a scam. Mizudako is a type of octopus; battered and fried, it has a springier, more tender bite than the usual grilled or boiled preparation. Kinki (also called kichiji) is a deep-sea rockfish prized in Japan for its rich, fatty flesh — here it’s simply salt-grilled and served with grated daikon and lemon.
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Izu no Shun Yanmo Marunouchi ten on Tabelog (English) — opening hours, payment details and the Japanese address are kept up to date there, not here.
Hello, this is Hangover Meshi. This time we decided to drink somewhere near Tokyo Station, and while searching mainly for seafood places, I found this one. I was hoping for somewhere good that opens fairly early, and it turned out to be a perfect match. Apparently the fish here comes straight from Izu, so I made a same-day reservation and went right over.

It’s in the basement of the Shin-Tokyo Building.
There’s also a bento shop called Yanmo nearby, I think, so be careful not to mix them up!
You order by scanning a QR code and ordering from your phone.
The place has this strong, traditional Japanese atmosphere, but the ordering system is way ahead of the curve! Ordering by QR code is definitely easier, and better!!!
First up, barley shochu with soda!



Sea bream, tuna, kanpachi, horse mackerel, and more. The fish is so plump and fresh.
No surprise, given it comes straight from Izu. This is seriously delicious!
On top of that, the ginger and wasabi are both good quality, and there’s even rock nori included — it feels genuinely luxurious.
It might have been a while since I’ve had sashimi this good! The shochu keeps going down and down.

Fried octopus is a must-order, I was thinking, and then one piece of fried fish showed up right in front too, lol
I’m not sure whether that’s part of the dish or it came by mistake, but lucky me! The fried mizudako octopus has more of a springy, squishy bite than a chewy one — a bit of a new sensation. I prefer regular octopus, but this kind of fried octopus is fun once in a while too.


And to finish, the big one: salt-grilled kinki.
The menu said “almost gone!”, and by the time we ordered it had sold out for the day — it was the day’s recommended fish.
The kinki came out grilled light and fluffy, well marbled with fat, and it was seriously good! The flesh falls apart at the touch of chopsticks, and it’s the finest kind of delicious. I squeeze a little lemon over the grated daikon and use that as a palate cleanser between bites! So good.
So, we didn’t actually order that many dishes, but every single one was pretty substantial, and the drinks kept flowing right along with it. I lost count of how many barley shochu sodas I had, lol. A place near Tokyo Station where you can eat fish this fresh and delicious, straight from Izu, is rare, so I definitely recommend this one!! By the way, there are other restaurants in the basement of the Shin-Tokyo Building too, so eating here first and then bar-hopping to the next place might be a good way to use it!?
Izu no Shun Yanmo Marunouchi ten (Japanese Cuisine / Yurakucho Station, Nijubashimae Station, Hibiya Station)
Tabelog dinner rating ★★★☆☆ 3.7
I ate here and paid for it myself. Nothing on this site is a comped meal.













