[xu-] Professor X is in the [4] bathroom of the [-(e)n] infirmary where he finds a 歹 skeleton that holds a 勹 container with a 日 sun inside it. Next to him is a plaque saying that the 歹 skeleton 殉 died for the sake of protecting the 勹 container. The 歹 skeleton was once a nurse, Doctor X can infer with his mental skills. There are remnants of a scrub suit hanging off the bone, after all.