A collection of six stories.

I. I'm Not Afraid of the Wolf!.
II. Occult Detective Group - Part 1.
III. Occult Detective Group - Part 2.
IV. Horror Angel.
V. Tonda Birthday Present.
VI. Ookami Nante Kowakunai!!.

Hunters are a special breed, dedicated to tracking down treasures, magical beasts, and even other men. But such pursuits require a license, and less than one in a hundred thousand can pass the grueling qualification exam. Those who do pass gain access to restricted areas, amazing stores of information, and the right to call themselves Hunters.

(Source: Shonen Jump)

Tsutsui Yukitaka was a freshman who had just entered a high school, and he was hoped to be a good baseball player. When he moved to a new apartment, there was a man in the room. He said he was an alien and lost his memory.
Actually, he was the first prince of Planet Dogra, and he was the man who had the best brain and the worst nature.

The Koinobori yakuza family's souls are expensive commodoties, a source of great pride to those of the demon world's soul bank. But when the Koinobori heir, Ryuji, is born with a pure soul engrossed with fairies and angels, it's up to Maria to become his personal cupid and reform him so that he continues the Koinobori's lascivious family line!

(Source: Mangadex)

Yusuke Urameshi was a tough teen delinquent until one selfless act changed his life... by ending it. When he died saving a little kid from a speeding car, the afterlife didn't know what to do with him, so it gave him a second chance at life. Now, Yusuke is a ghost with a mission, performing good deeds at the behest of Botan, the ferrywoman of the River Styx, and Koenma, the pacifier-sucking judge of the dead.

Note: Won the 39th Shogakukan Manga Award in the Shounen category.