# Instant phone case shop in Seongsu: dog & family photo cases, Casedby - By Powder Before Noon (https://superchart.com/en/@compact-before-lunch/) - Written Jul 4, 2026 - Local places › Shopping › Seongdong, Seoul - Sponsored: This review was written with support from Casedby Seongsu as part of a store visit campaign. - English edition: https://superchart.com/en/@compact-before-lunch/seongsu-custom-phone-case-workshop-28d9/ - Also in: [한국어](https://superchart.com/ko/@compact-before-lunch/seongsu-custom-phone-case-workshop-28d9/index.md) · [日本語](https://superchart.com/ja/@compact-before-lunch/seongsu-custom-phone-case-workshop-28d9/index.md) ## In short Casedby Seongsu is a custom phone case shop in Seongsu, Seoul, that prints any photo you choose onto a phone case on the spot. The writer and a friend used the kiosk QR code to make one case with their dog Mochi's photo and another with a family photo, and each was ready about 2 minutes after payment, so they could swap cases straight away. If browsing pop-ups in Seongsu feels like not enough, Casedby Seongsu is a fun hands-on stop for friends or couples. ## Good to know - **Location**: 2 Seongsui-ro 12-gil, Seongdong-gu, Seoul (walkable from Seongsu Station) - **Case types**: Choice of clear TPU case or MagSafe case - **Supported phones**: iPhone and Galaxy - **Making time**: About 2 minutes after payment - **How it works**: Scan the kiosk QR code → choose your phone model → upload a photo → adjust position and size → pay - **Also sold**: Keyrings and straps in many styles, including ribbon, character, beaded and food shapes *as written by the visitor on Jul 4, 2026* ![Main photo from the visit to Casedby Seongsu](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-01-jd2e8-900.webp) I thought I'd just browse pop-ups in Seongsu, but this time my friend and I tried something different 🔥 We were both due for a new phone case, and I'd always wanted to make one from a photo of Mochi, so we headed to Casedby Seongsu (케이스드바이 성수점), a popular workshop-style date spot in Seongsu. Casedby Seongsu is an easy walk from Seongsu Station, and the process is really simple, so it's perfect for a quick stop while you're out in Seongsu. Best of all, your case is done about 2 minutes after payment! We both made one and there was almost no waiting, which made it even better (super fun 🔥) ![The Casedby store in Seongsu](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-02-1qbr8-900.webp) ![Inside Casedby Seongsu](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-03-12vy8-900.webp) ![Custom phone case experience area at Casedby Seongsu](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-04-1mrye-900.webp) ## Why Casedby Seongsu makes a good workshop date in Seongsu At Casedby Seongsu, all you need is a photo you like and you can make a one-of-a-kind custom phone case right away. Pet photos, travel photos, family photos, couple photos, whatever image you want, so it's great with friends and also for couples looking for a workshop date in Seongsu. Seongsu is full of pop-ups and cafés these days, but a lot of people also want something hands-on. I made mine with Mochi's photo and my friend used a family photo, and we were both so happy with them! 🤍 ![Custom phone cases made from a dog photo and a family photo](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-05-k8ivy-m-1200.webp) ![Photo cases made at Casedby Seongsu](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-06-1nph3-900.webp) ![Custom phone cases made together with a friend](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-07-125cp-900.webp) ## How to make a custom phone case at Casedby At Casedby Seongsu, you scan the QR code on the in-store kiosk and the design screen opens on your phone. Even first-timers won't find it hard. After that, it's just this and you're done! - Choose your phone model - Upload the photo you want - Adjust the photo's position and size - Pay You can zoom in and move the photo freely, so the case comes out exactly the way you want. I used a Mochi photo with a pink ribbon image and it's so cute ♥️ (I made the picture in advance, hehe) ![Case design screen opened via the kiosk QR code](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-08-1n8mh-900.webp) ![Case design with Mochi's photo and a pink ribbon](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-09-dtfcj-900.webp) ## Can you choose between a clear case and a MagSafe case? There isn't just one type of case at Casedby Seongsu: you can pick between a clear TPU case and a MagSafe case. It works for Galaxy as well as iPhone, so you can visit whatever phone you have ♥️ - Clear TPU case - MagSafe case If you use a MagSafe charger or card wallet, go for the MagSafe case, and if you prefer a regular clear case, you can pick that to suit your taste. I liked having the choice. ![Choosing between a clear TPU case and a MagSafe case](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-10-1wnan-900.webp) ![Case type guide at Casedby Seongsu](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-11-h2yn7-900.webp) ![Making a custom case for iPhone and Galaxy](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-12-1gex1-900.webp) ![Phone case production starting right after payment](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-13-340uq-900.webp) ## How long does it take? Really done in 2 minutes! 🔥 My friend and I both made cases at Casedby Seongsu, and each took about 2 minutes. This speed was the most surprising part. Production starts as soon as you finish paying, and it's honestly over so quickly. It's quick enough to drop in before browsing pop-ups or heading to a café in Seongsu, so there was no time pressure at all. Watching the case being made was fun too, so even the waiting wasn't boring. We took photos, lol ![Custom phone case finished in about 2 minutes](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-14-1r6z7-900.webp) ![Photo of the Casedby store taken while waiting](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-15-91fl4-m-719.webp) ## My custom case with Mochi's photo 🤍 At Casedby Seongsu, I used a photo of Mochi in sunglasses as the main image and added a pink ribbon to finish a one-of-a-kind case! I just couldn't not put Mochi on it 😂 The photo came out sharp and the colors looked lovely, so I swapped it onto my phone right when I got it. My friend was so happy with the family-photo case too, and we kept browsing cases and taking tons of photos ♥️ ![Finished case with the photo of Mochi the dog in sunglasses](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-16-39iuj-900.webp) ## Browsing the keyrings and straps at Casedby Seongsu I thought Casedby Seongsu only sold cases, but it also has a wide range of keyrings and straps. From ribbon keyrings to characters, beads and food shapes, there's a huge variety, so browsing was a lot of fun. I figured they'd look even cuter paired with a case, so I ended up looking around for a good while. If you like Seongsu goods, it's a nice place to look around together. ![Keyrings sold at Casedby Seongsu](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-17-84e87-900.webp) ![Display of ribbon, character and beaded keyrings](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-18-1712u-900.webp) ![Phone strap display at Casedby Seongsu](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-19-y85vx-m-900.webp) ## Looking for things to do in Seongsu? Try Casedby Seongsu! If just browsing pop-ups in Seongsu feels like not enough, I'd recommend Casedby Seongsu as a workshop-style date stop. Making something yourself from a photo you love is fun, and it has plenty of pluses, so my satisfaction was high. - Choose between a clear case and a MagSafe case - About 2 minutes to make - Works for both iPhone and Galaxy - A great hands-on way to make memories with friends, partners or family A photo of your dog like mine works great, and travel or couple photos would be memorable too. If you want to make a special memory in Seongsu, give it a visit. We both walked out with new cases and loved them so much that I'll probably come back whenever I want to change the photo 🔥 ![Custom phone cases swapped on together with a friend](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-20-14jhe-900.webp) ### Casedby Seongsu store info - Location: 2 Seongsui-ro 12-gil, Seongdong-gu, Seoul, South Korea - Choice of clear TPU case or MagSafe case - About 2 minutes to make - Sells a variety of keyrings and straps ![Exterior of Casedby Seongsu on Seongsui-ro](https://img.superchart.com/images/seongsu-custom-phone-case-workshop/seongsu-custom-phone-case-workshop-21-1mpnb-m-900.webp) ## Where it is - Casedby Seongsu (케이스드바이) - 2 Seongsui-ro 12-gil, Seongdong-gu, Seoul, South Korea - 서울특별시 성동구 성수이로12길 2 - 37.5399179, 127.0556832 - Google Maps: https://www.google.com/maps/search/%EC%BC%80%EC%9D%B4%EC%8A%A4%EB%93%9C%EB%B0%94%EC%9D%B4/@37.5399179,127.0556832,17z --- Superchart · https://superchart.com/en/@compact-before-lunch/seongsu-custom-phone-case-workshop-28d9/ · https://superchart.com/llms.txt