【Black Comet Empire】King’s threat

From the Magical Woman Lyrical Nanoha series.

A girl who is blackmailed by her younger superiors into revealing secrets from her past.
The boy’s innocent desires play with his ripe body to the point of perfection, eventually involving Sienna and humiliating her to the limit.

This is the DL version of a doujinshi published in 2014. The contents are a novel and illustrations.
HTML version (horizontal writing) and PDF version (vertical writing) are included.

Illustration: Agar