( * ) Minor sexual acts or advances, no intercourse
( ** ) Sexual acts, intercourse
( R-18 ) Dark, (torture, gore and such things)
[take into account, not always will be explicit (or only just mentioned) or a whole chapter dedicated to it]
Read author's thought ''
This will be mainly the classification, if one day I decide that something is superfluous or I need to add a different classification, it will simply appear here. :)