In its latest five minutes, NTR tries to get a little more granular with the relationship between Yuma and Hotaru. They go back years, and Yuma always played the protective role of shining knight when the Hotaru was teased.
Fast-forward to the present, and Yuma is still Hotaru’s only female friend. Yuma is still a little resentful that Hotaru found a boyfriend before her, but now that Yuma has one, Hotaru is being almost clingy with her teasing, and the kissing was a big deal for Yuma.
Yuma’s boyfriend Takeda is a pretty nice guy, proposing bold sleepover but changing it to a double date out of consideration for how close Yuma and Hotaru clearly are. But Hotaru was pretty blatantly manipulative with both Yuma and Takeda.
At the amusement park, we learn possibly why that is, and why Hotaru just might prefer Yuma: her boyfriend Fujiwara, has a bit of a temper, slamming his foot on the bench she’s sitting on when she refuses his advances. He’s also already suspicious about her and Yuma, while Takeda is blissfully unaware.
It would seem then, that Hotaru yearns to maintain the knight-and-damsel dynamic Yuma and her have always had. Hotaru just doesn’t seem that interested in Fujiwara. She seems to prefer Yuma, and wants her, whether Yuma has a decent boyfriend or not.