Akane
We’ll be spending our winter holidays, from a few days before Christmas Eve until New Years in Japan. Around Christmas, we plan to be in Tokyo, so I'd like some suggestions on what to see during our visit. I’ve heard that the Christmas lights around the city are quite pretty during that time of year.
Akane
Yes, you’ll be able to see a lot of illumination events around the city during winter. The following is a list of places you might want to visit: Roppongi Hills (Keyakizaka street), Tokyo Midtown, Omotesando, Ebisu Garden Place, Tokyo Tower, Marunouchi (including the KITTE Bldg), Odaiba. Maybe you can put these places in at the end of your day so that you can see the Christmas lights.
Some of the places above are featured on this website. https://tokyocheapo.com/entertainment/top-10-picks-for-best-winter-illuminations-in-tokyo/