What kind of healing system does Mercury Navigator belong to?

Mercury navigator is a pure healing system, which is different from animal healing systems such as Sweet Private Cat and magical healing systems such as Grey Feather League. Mercury is the simplest type.

In addition, Nanjia and Az are really not healing systems, and Az are relatively close, but there are a lot of cold jokes, and the rhythm is cheerful, so Nanjia is no longer a healing system in narrative structure. Anything with YY and XE elements is not a healing system

To say the same kind, Yokohama shopping trip is very good and the pace is very slow.