Mass upload is amazing!
Love that this feels like a third season, endgame story transition. Both Gals are openly competing for Seo, but there are two challenges. One is getting him to realize he wants to date them or that he even has a shot, even if he thinks it could risk their friendship. Two is Amane and Ichiji realizing that "Throuple" is in fact the best option.
I liked how they set up Sayu being the centerpiece of her own throuple as an example. Sayu could be the inspiration or wingman who ends up getting these three together.