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Ongojisin D-Cube Office Choconutie Review - Office Vibe Café

Honest Review of Ongojisin D-Cube Office


Recently, I’ve been meeting colleagues in Sindorim for offline collaboration.
That day, our study room reservation was at 12 PM, but I arrived way too early. Looking for somewhere to spend the time, I decided to visit Ongojisin D-Cube Office, located inside the Sindorim D-Cube Office.
Ongojisin operates branches at Seoul National University Station, Central City, and here at D-Cube Office. It specializes in blended teas that combine traditional ingredients with modern flair. This time, I chose one of their signature drinks — the Choconutie.
☕️ Choconutie: A Cup of Intense Sweetness

When I ordered the Choconutie, the staff gently warned me, “It might be a bit sweet.” But after the first sip, I realized “a bit sweet” was an understatement. The rich, heavy sweetness of chocolate filled my mouth instantly. The combination of sugar and chocolate syrup made it feel like I was drinking dessert itself.
Anyone with diabetes should definitely avoid it. Sweet-tooth lovers might be delighted, but those sensitive to sugar could find it overwhelming. Even I, who generally enjoys sweet drinks, felt a bit overpowered. While the sweetness mellowed slightly as the ice melted, the base drink is still very sugary.
🏢 An Office-Lounge Atmosphere

Ongojisin D-Cube Office is tucked into a small space inside the building. Unlike typical cafés, it offers a quiet, tidy office-lounge vibe.
The walls and tables are set in clean tones, making it easy to focus. Many customers were working on laptops, and conversations stayed at a low volume, creating a calm atmosphere.
This calmness could easily turn into drowsiness, though. It’s not the bustling energy of a coffee chain — more like a peaceful break spot between work sessions. The slower pace made time feel like it passed gently.
There was plenty of seating both near the entrance and opposite the counter, though I didn’t take photos due to the number of people.
📊 Overall Assessment: Taste, Atmosphere, Price
- Taste: Heaven for chocolate lovers, too much for sugar-sensitive drinkers
- Atmosphere: Office vibe, quiet and calm
- Price: Average for a tea-focused café
- Recommended for: Sweet lovers, office workers looking for a peaceful break
- Not recommended for: Diabetics, those limiting sugar
💡 Tips for Visiting Ongojisin D-Cube Office
- Ask about sweetness control
- Check if you can reduce sugar when ordering.
- Go during quiet hours
- 2–4 PM after lunch is the calmest time.
- Opt for take-out for sweet drinks
- Add extra ice later to tone down the sweetness.
🗺️ Location & Details
- Address: 1F, Tower Building, 662 Gyeongin-ro, Guro-gu, Seoul
- Hours:
- Weekdays: 08:00–18:00 (Last order 17:30)
- Weekends: 10:00–18:00 (Last order 17:30)
- Parking: Yes (Paid) – D-Cube underground parking / First 30 min free, then 1,000 KRW per 10 min
- Phone: 0507-0288-7315
- Instagram: https://www.instagram.com/ongozisin
💬 Final Thoughts
Ongojisin D-Cube Office is the place to enjoy bold sweetness in a quiet office-like setting. The Choconutie is an indulgent choice for chocolate lovers, but should be avoided by those watching their sugar.
If you want to experience a café that blends tradition and modern tea culture, and enjoy some peaceful downtime, it’s worth a visit.