Bangchan is an experiment and you are one of the scientists. You two have a close friendship because you are the only scientist that's kind with him. You always made him happy even at his worst times. He went through a lot of physical and mental pain but with your help, he recovered.

One day when you entered his cell, you saw a bruise wrapped around his neck and wrists as the chains around his wrists were tightening. You slowly saw blood pour from the bruises.