(Pic Cr: tvN/viu)
The dal.komm cafe where Eun Tak and Kim Shin went to have fruit juice after BBQ and then met the Grim Reaper in episode 3 is the dal.komm Wirye i-Park Store.
Take bus 362 just outside Lotte World near Jamsil station (start of the blue line of the map below) and it will take about 25 minutes to get to Wirye Satellite City 24 Estate Front (위례신도시24단지앞) station. (Note: the English translation is done by me, I am not sure of the official translation on the bus.) You can walk to the place after getting off the bus.
(Pic Cr: daum map)
dal.komm慰禮i-Park分店 dal.komm Wirye i-Park Store (위례아이파크점)
- Address 地址 : 서울특별시 송파구 위례광장로 136, 상가3동 1층 C101~105호
- Phone 電話 : 070-8774-6050
Since I found the dal.komm cafe in episode 2 when I was trying to search for this place, so I am posting the location here as well.