The difference between samurai zero prison and not killing people

Samurai Zero Prison doesn't kill people. The difference is that you can't trigger the hidden BOSS. Killing veterans can trigger hidden BOSS, but not killing them can't trigger it. Level 1 1 does not need to be re-entered except for levels 2, 3 and 4. After the precondition is completed, the position of the doctor's video is automatically entered at the level of 1 1, which will trigger the dialogue.