Overview
Scott_Pilgrim, or scott_pilgrim, is a English written tag for Scott Pilgrim. Due to pixiv tags not having spaces it can be hard to write something in English. Some users have resorted to using a underscore as spaces.
Since ScottPilgrim is not case-sensitive and is not separated by underscores, partial match search is recommended in pixiv search.
For more details refer to the article Scott Pilgrim.