Hiruko

Hiruko
Hiruko (ヒルコ) are the result of experiments conducted by Mina and the Takahara Society. By manipulating the genes of donated sperm dishes, coalescing them with proto-hiruko DNA, and maturing them inside of a sterilized container within Mina, Takahara Academy was able to create a generation of new beings, containing cores which grant them special properties. These properties could be something as simple as incredible strength and durability, to telekinesis and the ability to foresee the future.

However, unbeknownst to Kaminaka Shino, the director at the academy, such cores were not without their own issues. Due to their volatile nature, they will begin to become problematic to the health of their host. The rate at which a core may begin to deteriorate its own host is completely random, and will always inevitably result in the death of said host. Upon death, the core ultimately becomes extremely hostile; turning whoever it dwelled inside of into a Morphed Hiruko.

Known Hiruko

 * Maru
 * Yamato
 * Tokio
 * Kona
 * Mimihime
 * Shiro
 * Taka
 * Anzu
 * Kuku
 * Ohma
 * Michika
 * Nata
 * Mako
 * Sayuka
 * Tarao
 * Asura
 * Nanaki
 * Iwa
 * Jugo
 * Totori

Transformation
Morphed Hiruko (ヒルコ) are horrific creatures, making a frequent appearance as a threat in the Heavenly Delusion series. They are often referred to as a ''Man-Eaters' (人食い/), and are called beasts many times throughout the series.

The name by which they are called differs depending on the person, or the area. Each Hiruko mimics and/or approximates the abilities of the person they once were. Their food primarily consists of human themselves, in which poses a great threat to those who survived the disaster years ago.

All Hiruko are near immortal. While it appears throughout the series that one may appear dead, they can only sustain physical damage and be put in a near death state. Maru however, has a unique ability which can put an end to a Hiruko effectively; an ability none except him, currently has.