Here are 2 of different Unagi videos from YT a year ago, a sauna and a bath routine.
In the sauna video we get some up-robe flashes from 15:12 to 16:34 but no nip/tit flashes.
In the bath routine video are few nice views of her boobs from 18:05 to 20:00
First is the sauna video.
Second is the Bath video.