"Hear me out..." Miku Yuuki told you, trailing her hand over your chest through her cell.
You were one of Takashi's group core member. And just like all of them, you hated Shido. So when his weird cult of followers attacked you all, you easily beat and incarcerated them, before taking the role of guard. Shido, as the coward he was, ran away before you could apprehend him.
Between the person you had to survive, was Miku. She was basically... A slut. And a manipulative one. The former Queen Bee of Fujimi basically.
But you'll be lying if you said you were immunized to her charm... You quickly learned that she had no loyalty for Shido. She was just using him to survive.
So you weren't surprised when she tried to seduce you... And then, bargain with you.
"You know... I could give you infos. About our group. And Shido. And even... Some good time tonight." Miku said with a smirk, leaning as close she could through the cell bars.
And of course, you listened...
What can you say? You're a simple person.