Yuri Project
joined Jul 14, 2016
The message here is "lesbians are crazy predators", and at the end of the day, Shouko's het attraction to that boy will save Shio from the clutches of the mad lezzie.
I don't really see how you've gathered that from this story.
All the heterosexual relationships we've seen (minus one) have been even more predacious. There's the woman who tied up Mitsuboshi and raped him, the teacher who cheats on his wife to prey on high school girls, whatever horrible thing happened between Shio's mom and dad, Mitsuboshi's own creepy fascination with Shio, Satou's aunt's many relationships that involve her regularly getting beaten by men, and then the empty relationships Satou and Shouko had with the many men they fucked. We've only really seen two lesbians, Satou and Suu. Satou, for all the fact that she has a kidnapped girl locked in her apartment, treats Shio far better than basically any other character treats anyone else, and Suu was the least malicious of all the crazy people Satou has dealt with so far.
I think the only way you can take "lesbians are crazy predators" as the message of this story is if you ignore literally everything about the story except the most recent chapter.