Do it! But first...

Ren put Chihaya into a trance again. He thought to Makoto and all the fun she was probably having since she pumped Ann's mind full of triggers.

Ren wanted to do the same to Chihaya. To put dozens of triggers in her brain that he could activate on a whim.

So he began to shoot off a few triggers for Chihaya to follow, each one associated with a role or action she would do upon hearing the trigger's number.

Ren thought of how fun it'd be to fuck Chihaya as one of her triggers. Or he could wake her and fuck her with her 'obvious' trigger still going.