When you exit the JR Ogikubo Station West Exit ticket gate and head towards the Oume Kaido, you'll see the entrance to Lumine.
And, there's a place to sit and rest in front of the Lumine entrance.



There are circular benches where about 10 people can sit.
Regarding congestion, I checked on weekends and holidays, and there were only 2 people using it.
As this rest area is right next to the Ogikubo Station West Exit, there's a lot of foot traffic, which might give you the impression of not being so relaxed.
Therefore, it's recommended for meeting up at Ogikubo Station or taking a short break.
Since it's an outdoor rest area, please be aware that there is no shelter from rain or sun.
Also, there is a "Rest Area near the Lumine Escalator" nearby, so consider that if you prefer to rest indoors.
How about using it as a place to sit and rest around Ogikubo Station while you're shopping at Ogikubo Lumine?




