The next, and what Tenchi believes to be the final event in the sports festival is devised by StuCo Prez Momo herself: Butt Sumo. If you think this is a blatant opportunity for fanservice, well, you’re only half-right, since there isn’t much to see—it’s pretty tame stuff. Instead, it puts Tenchi in the awkward position of having to referee a butt sumo match between to high school girls without staring at their asses too long.
Momo chose Butt Sumo because she wanted to engage in activity that would put her in close proximity to her adversary (in this case Beni, whose ass is not as strong as her arms and hands), because she wants to talk and be friends. Beni doesn’t want to talk, just win, but both girls fall off the platform (and onto Tenchi’s face), leaving the White and Red teams still knotted up at 1050, necessitating a night overtime.