DESTINY LOVERS VOL 03 (MR)

Long ago, Fujishiro Koskue promised to save himself for his childhood friend, Sayaka-chan. But when Kosuke finds himself kidnapped and held hostage in a mysterious prison, he's stunned to discover its voluptuous wardens are only after one thing: his body. He's going to have to fight to keep that promise, and the consequences could be deadly!
For mature readers.