Notice during the reveal how Shino has hearts on her eyes and even her aho-ge is turning into a heart, she wants it so badly.
The others three are fakers. There’s only 1 heroine here.
Interestingly enough this made me think about how you could interpret each of the teachers sleep talk and relationship with mc this chapter. With orizuru while you could pass off her actions as usual teasing, it gave off more of an impression that she was having the mc take the lead in her dream. With meka you can interpret her begging the mc for a piggyback in her dream as her using the mc as her support. While the mc interpreted takahashis dialogue as working out, her mentioning him teasing could show that she was doing a different kind of exercise. All shino did was strip and shove her boobs in mcs face. With all this in mind, its clear all the other teachers want him for his body while meka wants him for support, thusly reaffirming the short stack supremacy!