Maria Custard

Maria Custard was one of the apprentices of Ragithis, and was known as one of the Four Witches of Custom, specializing in water magic. She turned to the technical side, and worked on various technical inventions right after Rance saved her from the ring's possession and also caused her to lose the most of her magical power. Ever since that event, she has been in love with him.

She runs the "Maria Factory" in Kathtom, helping with the restoration of the town after the events of Rance 2. She was also the leader of the Custom Defense Force against the Helman invasion of LP0003.

She is a close friend to Masou Shizuka who was heavily implied to be the leader of Four Witches of Custom.

One of her interests is magic development.

Rance 2
One of the Four Witches of Custom, Maria appears as the first maiden who confronts Rance and is also the first to "bite the dust". After her defeat, Maria joined Rance's party in purpose to save her comrades and she has proven to be a valuable ally until the end of story. Maria runs "Maria Factory" in Custom, helping with the restoration of the town and to repent what she and her comrades ever done.

She partakes in the final battle indirectly as she is not shown in the party members, but she is the one responsible to deal the a lot of serious damages to Ragithis by using her Tulip.

Sengoku Rance
She appears as the reinforcement from Zeth and her job is "Engineer".

Since she's the creator of the Tulip series, and is also the inventor of Tulip, she is worshiped as a goddess by people from the Tanegashima House.