Mero Furuya (降谷 萌路 Furuya Mero) is Chihiro Furuya's 12-year-old little sister. She is seemingly emotionless, but is actually very lonely after her mother died and she still mourns her. She is a hard worker and is often seen sweeping around the house or doing household chores.
Mero is a short, petite girl with long, sky-blue hair, and dark grey eyes. She usually wears her school uniform and is also seen wearing the traditional white temple uniform for girl priests with a paper fold around her forehead.
Mero is very polite, probably taking off from her father, and is quite expressionless. She often displays a blank expression on her face and rarely changes it. Despite this, she loves her brother very much and is often teasing him. When Furuya was bedridden due to Rea's attack at the festival, she is seen in a frenzy due to her brother's state. It is stated that she is very responsible compared to her brother. Unlike her brother, she is more interested in ghosts rather than zombies.
Mero at first is seen as the caretaker of the household, cooking and cleaning for the Furuya family. At the night of the barbecue, she teases her brother and sets up a test of courage in the forest. She partners up with Rea and explains that having watched Chihiro for twelve years, she's relieved he found Rea.
- She is named after George A. Romero.
- The white temple uniform and paper fold around her forehead also symbolizes Japanese ghosts. Whether or not she likes dressing up as a ghost is debatable.
- On chapter 12 of the manga Mero have some flashback of her mother after Rea touch her head, Mero even shout "mama" to Rea (this might happen because her mother and Rea have some similarities) after she said that, Mero quickly blushed then ran away in embarrassment.
- She hosts the End-Of-Volume Comics and Mero's Zen Riddles, where she answers fan mails.
- Many mails ask Mero to cosplay different attires, much to her dismay.