The Mist Surrounding Us

Sabito and Giyuu, childhood friends and mates. They had faced everything side by side. However, one thing still persists. Giyuu's lack of self-worth; and Sabito's inability to shut his mouth.

Giyuu's self-image worsens when the couple meets Shinazugawa Sanemi.

The new math teacher at their school, who despite his rough teaching methods, genuinely cared for his students.

It doesn't help that Sanemi is drawn towards Giyuu, and not knowing he was mated.

Sabito doesn't know how to defend his right as Giyuu's mate, so instead, he uses his best possible defense. His mouth.

Somehow everything goes downhill from there.