Gwangjin café for Ethiopian Koke Honey and butter tteok: Wonz Coffee

💡 One-line summary: A special coffee built on top-tier equipment like a Slayer and Rover S plus a national-team barista's know-how, handmade bakery items baked fresh daily, a clean in-store restroom, and a receipt sticker photo booth — my top pick for a café near Children's Grand Park in Seoul! Here's my visit to Wonz Coffee (ONESCOFFEE) in Guui-dong.

With the weather this nice lately, a lot of people are heading to Children's Grand Park or dating around Konkuk University and Sejong University, right? If you're looking for a special café nearby where you can enjoy really solid coffee and sweet bakery desserts after your walk, there's a place you have to check out.

It's Wonz Coffee, where a national-team barista roasts and brews everything by hand — and a regular has apparently come back 305 times, which tells you how proven this place is! I'll walk you through the vibe, my menu picks, the in-store amenities, and some fun events, all based on my own visit.

Exterior of Wonz Coffee Children's Grand Park Main Branch in Guui-dong

Where is Wonz Coffee and what is the café like?

Wonz Coffee sits in an alley near Children's Grand Park Station and Guui-dong, with an exterior that's clean yet gives off a cozy neighborhood-regular vibe from the outside.

Step inside and you're greeted by a calm, warm interior — a quiet, comfortable space well set up for Konkuk/Sejong University students, park visitors, and parents with babies alike. Dogs are welcome too, which made it feel even friendlier!

The freshly baked pastry case at Wonz Coffee

Interior of Wonz Coffee with the bakery showcase

Handmade desserts displayed in the Wonz Coffee showcase

Wonz Coffee is famous for its coffee, but it's also well known for its high-quality handmade bakery lineup, made and baked in-house. The showcase is lined with all kinds of carefully baked desserts — picking just one is half the fun.

Scone lineup: Plain scone (₩3,800), raspberry scone (₩4,100), apple cinnamon scone (₩4,300), Earl Grey scone (₩4,500), choco chip scone (₩4,500)
Baked goods & handmade desserts: chewy, special butter rice cake (₩2,500), egg tart, assorted financiers (lotus, salty choco, macadamia, etc.), choco s'more cookie (₩4,500), croffle (₩4,500)
Other desserts: menus using handmade vanilla bean and house syrup, plus Basque cheesecake, tiramisu, and more

Scone and pastry display case at Wonz Coffee

Vertical shot of Wonz Coffee's handmade bakery showcase

Display case with financiers and cookies at Wonz Coffee

Showcase with visible dessert price tags at Wonz Coffee

Bakery menu items lined up at Wonz Coffee

Desserts arranged near the counter at Wonz Coffee

Facilities and promotions at Wonz Coffee

Wonz Coffee had plenty of things that set it apart from other cafés, plus thoughtful amenities and events.

Amenity information area inside Wonz Coffee

🚽 A clean, comfortable restroom inside the café

A lot of you probably care about how clean a café's restroom is, right? At Wonz Coffee, you don't have to step outside the building — the restroom is right inside the store, which is really convenient. The sink, mirror, and lighting were all stylish and well kept, so it was hygienic and pleasant to use, which I really appreciated.

Sink and mirror in Wonz Coffee's in-store restroom

Clean lighting and interior of Wonz Coffee's restroom

📸 The black-and-white receipt sticker photo booth

Inside Wonz Coffee there's a receipt sticker photo machine where you can take your own photo and print it out instantly! Touch the screen, take the shot, and out comes a sticker photo full of memories. The wall around the full-length mirror is covered edge to edge with sticker photos from countless past visitors — it's a perfect quirky spot to make memories with a partner, friends, or family.

Receipt sticker photo booth and full-length mirror at Wonz Coffee

🎁 Naver review and prepayment point promotions

Naver MY Place receipt review event: write a receipt review and get up to ₩4,500 worth of perks (a drip bag draw, a coffee bean pack, or an espresso stick gift, etc.)
Reasonable prepayment reward event: charge ₩30,000 / ₩50,000 / ₩100,000 and earn tiered bonus points — great for regulars

☕ ₩42.5 million in equipment and a national-team barista

The café has a top-tier extraction setup including a Slayer and Rover S, and uses beans roasted in-house by a national-team barista, which apparently maximizes the coffee's inherent depth and aroma.

Honest review of everything ordered at Wonz Coffee

Coffee and dessert spread ordered at Wonz Coffee

I ordered Wonz Coffee's signature Ethiopia coke honey (₩6,500), handmade milk tea (₩6,000), and for dessert, butter rice cake (₩2,500) and an Earl Grey scone (₩4,500)!

Cup of Ethiopia coke honey coffee at Wonz Coffee

① Ethiopian Koke Honey (₩6,500)

True to the national-team barista's touch, the aroma alone was on another level. The bright floral scent and gentle fruity acidity typical of Ethiopia coke honey, balanced with a pleasant sweetness that lives up to the 'honey' name, was just excellent. Combined with the custom cream and a clean texture, the finish was refined and nutty — anyone who loves coffee will be satisfied. At ₩6,500, the quality more than justified the price.

Bottled handmade milk tea with an ice cup at Wonz Coffee

② Handmade milk tea (₩6,000)

Served neatly in a pretty bottle alongside a cup of ice, the handmade milk tea (₩6,000) wasn't artificially sweet — instead it had an appealing, subtly deep black tea flavor from a proper steep. The nuttiness of the milk and the tea's heavier aroma blended together elegantly, making for a smooth, satisfying drink.

Golden-baked butter rice cake at Wonz Coffee

③ Butter tteok, a buttered rice cake (₩2,500)

I ordered the butter rice cake because it caught my eye in the showcase, and it exceeded expectations! The outside is baked golden and crisp, while the inside has the chewy texture typical of rice cake along with a rich, nutty butter aroma that fills your mouth. At an easy ₩2,500, it's a unique bakery item that pairs wonderfully with coffee.

Earl Grey scone studded with tea leaves at Wonz Coffee

④ Earl Grey scone (₩4,500)

The scone's surface is studded with Earl Grey tea leaves, so every bite releases a rich, deep black tea aroma. It's not dry at all — the inside is soft in that classic crisp-outside-soft-inside way — and pairing it with milk tea or drip coffee made for a perfect dessert time.

Final verdict: who will enjoy Wonz Coffee

After tasting it myself, I completely understood why this place has racked up over 300 regular visits. Great coffee, delicious house-baked goods, a clean in-store restroom, and a fun element for making photo memories — it's a space that has it all.

Highly recommended for:

Anyone in Gwangjin or Guui-dong looking for genuinely good specialty coffee
Park visitors or dating couples searching for a recommended café near Children's Grand Park in Seoul
Anyone near Konkuk/Sejong University wanting to relax with dessert and drinks
Anyone who wants to make a small memory with a receipt sticker photo
Anyone who wants a café with a clean, comfortable in-store restroom

If you find yourself near Children's Grand Park, be sure to enjoy a special cup of coffee and some sweet bakery time at Wonz Coffee!

📍 Wonz Coffee address and hours

Name: Wonz Coffee (ONESCOFFEE) Children's Grand Park Main Branch
Address: 32 Jayang-ro 32-gil, Gwangjin-gu, Seoul, South Korea (near Children's Grand Park Station / Konkuk & Sejong University)
Highlights: in-house roasting by a national-team barista, top-tier equipment including a Slayer and Rover S, clean in-store restroom, dog-friendly, sticker photo booth, specializes in handmade canned coffee and handmade bakery items
Recommended menu: Ethiopia coke honey (₩6,500), milk tea (₩6,000), butter rice cake (₩2,500), Earl Grey scone (₩4,500), cream latte, and more