# Gwanak Japanese restaurant lunch: bukkake udon at Kosi - By Chorok (https://superchart.com/en/@cafe-interlude-2/) - Written Sep 11, 2026 - Local places › Restaurants › Gwanak, Seoul - Sponsored: This visit was sponsored by the business. - English edition: https://superchart.com/en/@cafe-interlude-2/seouldaeipgu-bukkake-udon-koshi/ - Also in: [한국어](https://superchart.com/ko/@cafe-interlude-2/seouldaeipgu-bukkake-udon-koshi/index.md) ## In short Kosi Seoul National University Entrance Branch is a Japanese restaurant in Gwanak, Seoul, serving udon and pork cutlets. On a quiet weekday lunch, I tried the half-and-half cutlet and Sanuki bukkake udon with its chewy house-made noodles and rich cold broth. A great-value pick for solo meals or dates. ## Good to know - **Hours**: Daily 11:00–20:50 - **Break time**: 15:00–17:00 - **Address**: 466 Bongcheon-ro, Unit 101, Gwanak-gu, Seoul, South Korea - **Parking**: Not available - **Seating**: Two-person tables, four-person tables, and two bar tables - **Hot udon add-on**: ₩3,500 with the half-and-half cutlet *as written by the visitor on Sep 11, 2026* ![Signature dishes at Kosi Seoul National University Entrance Branch](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-01-allwv-1200.webp) ## Kosi, close to Seoul National University Entrance Station My boyfriend was getting his hair done near Seoul National University Entrance Station, so our date route naturally ended up in that area too!! That’s how we found this great lunch spot. It seemed like a good-value place for eating alone too, so I think it would be great for office workers near the station. Kosi is open daily from 11:00 to 20:50, with a break from 15:00 to 17:00. Parking is not available. ![Kosi location near Seoul National University Entrance Station](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-02-140tf-966.webp) Kosi is about a three-minute walk from Exit 5 of Seoul National University Entrance Station? It’s really close. ![Menu board outside Kosi](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-03-1x58t-966.webp) There was a menu board outside, which was nice for looking over the options and deciding while waiting~ ![Exterior of Kosi Seoul National University Entrance Branch](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-04-108ct-966.webp) Kosi is a Japanese restaurant specializing in udon and donkatsu (Japanese pork cutlet)! I had heard that its cold udon was especially good, so I went in excited. We visited at an in-between time on a weekday afternoon and got in without waiting. ![Customers inside Kosi](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-05-k0gv3-966.webp) While we were there, lots of customers who seemed to be nearby office workers came not only alone but with teammates too? It definitely had that beloved-lunch-spot vibe,, ![Different table seating at Kosi](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-06-g2gel-966.webp) Maybe that’s why there were so many different table setups! There were two- and four-person tables, plus two bar tables that looked perfect for solo diners. ![Two-person table at Kosi](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-07-14atj-966.webp) We settled into a table for two! ![Table with tablet ordering system](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-08-vfe9j-966.webp) You order on a tablet! You can pay right on the tablet too, which was convenient. ## Ordering the half-and-half cutlet and bukkake udon ![Kosi udon and pork cutlet menu](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-09-4a741-966.webp) ![Kosi menu guide](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-10-1mbf4-966.webp) These are Kosi’s menu items! I was so busy paying that I couldn’t photograph the tablet, haha, so I brought these instead. We ordered the fresh loin half-and-half cutlet and Sanuki-style bukkake udon! The half-and-half cutlet comes with loin cutlet and cheese donkatsu in equal portions, and you can add hot udon for ₩3,500! We wanted hot udon, cold udon, and pork cutlet all at once, so we added hot udon to the half-and-half cutlet and also ordered bukkake udon! For prices these days, it felt like a really good-value spot! Not long after we ordered, all our food came out. ![Ordered half-and-half cutlet and udon](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-11-12qc4-966.webp) ### Half cheese donkatsu and half loin cutlet First, my boyfriend’s half-and-half cutlet! It came with two pretty large pieces of cheese donkatsu and six pieces of loin cutlet! ![Cheese donkatsu with stretching cheese](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-12-1tzfa-966.webp) It had just come out, so the cheese stretched forever!! It was nutty and so delicious, haha. ![Loin cutlet and cheese donkatsu](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-13-1e6wq-966.webp) The loin cutlet was really tender too! Dipped in the sauce they served alongside it, everything worked so well together—the crispy coating and tender loin made for pork cutlet perfection!! ![Hot udon served with the half-and-half cutlet](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-14-ee0ok-966.webp) The hot udon was a small size, but still quite filling, so I recommend adding it for men with bigger appetites!! ## Sanuki bukkake udon with broth poured in at the table ![Sanuki-style bukkake udon](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-15-1l3cx-966.webp) The bukkake udon I was most excited for! They make the noodles themselves in the Sanuki style, which made me look forward to it even more! ![Bukkake udon and extra ingredients](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-16-1yvcq-966.webp) The basic side dishes and extra ingredients to add to the Sanuki udon were served separately. ![Udon side dishes and extra ingredients](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-17-19b6y-966.webp) ![Ingredients served with Sanuki udon](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-18-uyuqt-966.webp) There was also a small cabbage salad, and the cute little inari sushi (seasoned tofu-pocket sushi) was a bonus? Haha. ![Karaage and cold broth set](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-19-7ksl0-966.webp) The cold broth came separately so I could pour it in myself, along with four pieces of karaage (Japanese fried chicken). Bukkake udon really has its own appeal when you pour in the broth, right? I poured it in properly~~ ![Pouring cold broth over bukkake udon](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-20-1r950-966.webp) Once all the broth is in, it looks like this! The aroma of the broth was seriously rich. ![Udon with cold broth added](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-21-1arky-966.webp) In go all the extra ingredients too!! ![Bukkake udon with added ingredients](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-22-8nu7f-966.webp) I quickly removed the karaage because I was worried it would get soggy, haha. But it was even tastier when eaten together with the udon, haha. As for the taste, I could definitely see why they take pride in their house-made noodles! Even though the noodles were thick, they were incredibly chewy!! Because they were thick and springy, they paired best with the cold broth and stayed chewy right to the end. The broth had a rich aroma from the start, and it was salty-sweet in a way that went beautifully with the chewy noodles. ![Bukkake udon and karaage](https://img.superchart.com/images/seouldaeipgu-bukkake-udon-koshi/seouldaeipgu-bukkake-udon-koshi-23-1o2gc-966.webp) The karaage was seasoned too, so it was pleasantly salty even on its own. Eaten with the udon, it added another texture and tasted even better! ## A lunch that suits both solo meals and dates Kosi, a Japanese restaurant specializing in udon and pork cutlet, is very close to Seoul National University Entrance Station, so it is easy to get to and feels suitable for any kind of meal—from dates to eating alone—without sacrificing value! I especially recommend the bukkake udon with house-made noodles for anyone who loves chewy noodles! Seeing so many nearby office workers there made it seem like a real lunch favorite, so I recommend it to workers and students too!! ## Where it is - Kosi Seoul National University Entrance Branch (코시 서울대입구점) (코시 서울대입구점) - 466 Bongcheon-ro, Unit 101, Gwanak-gu, Seoul, South Korea - 서울특별시 관악구 봉천로 466 101호 - 37.4820226, 126.951605 - Google Maps: https://www.google.com/maps/search/%EC%BD%94%EC%8B%9C%20%EC%84%9C%EC%9A%B8%EB%8C%80%EC%9E%85%EA%B5%AC%EC%A0%90/@37.4820226,126.951605,17z --- Superchart · https://superchart.com/en/@cafe-interlude-2/seouldaeipgu-bukkake-udon-koshi/ · https://superchart.com/llms.txt