Zombie Powder.

Action Comedy Shounen

Somewhere in the desert lies the world's greatest treasure: the 12 Rings of the Dead, the only source of the mysterious substance called Zombie Powder, which can raise the dead and grant eternal life. Into this world walks Gamma Akutabi, a man with a metal arm and a six-foot chainsaw, cybernetically enhanced master of the legendary martial art. But it takes more than one man to find the ultimate prize. You need a team: super-gunman C.T. Smith, knife-slinging teenager Elwood, and brilliant (and impossibly big-breasted) journalist Wolfgangina. Against an army of crooks and killers, against runaway trains and super-powered madmen, they'll need all their skills... but the most dangerous thing in the west might be the Rings themselves... (Source: VIZ Media) Included one-shots: Volume 2: Ultra Unholy Hearted Machine Volume 3: Kokumashi Urara (Rune Master Urara) Volume 4: Bad Shield United

Castle Mango

Drama Romance Yaoi

Yorozu lives at Castle Mango, a "love hotel" where couples pay for a few hours to themselves. But his quiet life is violated when Togame arrives to shoot an adult film! Soon Yorozu's being "mistaken" for an actor, having his pants suddenly removed and watching his little brother get hit on. Togame eventually agrees to stay away from Yorozu's brother, but there's a catch - and it's not something Yorozu's going to like! (Source: Juné)

Powder Snow Melancholy

Yaoi

Yanai and Narikawa ended up becoming acquainted with each other by their University's Mister's contest. Including his personality, to a comical handsome guy like Yanai, natural hot guy Narikawa is his enemy. The girls that he has his eyes on are always won over by Narikawa. Because of frustration and jealousy, he's obviously avoiding Narikawa, but in the camp that he participated with the aim of hitting on girls, an accident occurred that made him closer to Narikawa… (Source: Starry Sky Scans)

Seikoku no Ryuu to Powder Kiss

Action Fantasy Magic

Kei Asagiri is boy who has had part of his soul ripped apart a sent into the Netherworld. This allows him to use the mysterious power of black flames stronger than any other magic, but in exchange for the lost part of his soul which is constantly being eaten by the denizens of the other side. Kei works as an "Antique Hunter" for the Kaorun Company. One day when returning from a job to Koarun Academy City in Japan, he was kidnapped by a weird but very capable group and brought to the far side of the city. By some weird but acceptable turn of events, he was made to become the owner of a very rare kind of antique in the form of a blonde British girl named Victoria. This particular antique is supposed to be the Key that can save Kei from being devoured by the other side by surpassing the magic power by supplying the vast and excess power to Victoria. It’s a win-win situation for both of them, since Kei gets his excess power out and Victoria gets enough mana to maintain her human form. But the only problem is the method―by kissing her once per day. (Source: Baka-Tsuki)