Ran

Ran is a Jack-O-Lantern that appears in Monster Musume: Everyday Life with Monster Girls Online.

Appearance
Normally incorporeal, a person can only touch her when she wants them to.

Zoological Classification
Jack-O-Lanterns, also known as Will-o'-the-Wisps, are said to be mischievous spirits or otherwise supernatural beings who travel the realm of twilight between the living and dead.

Stemming from Irish folklore, they are known for having carved out vegetable lanterns (like turnips or pumpkins) in their possession, which they use to light their way through the twilight, They also use these lanterns in attempts to lead travelers astray.

Trivia

 * "Jack-O-Lantern" is pronounced in Japanese as "Jakku-O-Rantan" which is where Ran's name comes from.