Hentai Manga like Gokusotsu Kraken

Tensei Colosseum: Saijaku Skill de Saikyou no Onna-tachi wo Kouryaku Shite Dorei Harem Tsukurimasu

Also known as Reincarnation Coliseum: The Weakest Skill Conquers the Strongest Women and Creates a Harem.

Status: Releasing
Genres: Action , Ecchi , Fantasy

The story begins when high school boy Mikagami, whose only redeeming feature is his skills in video games, is summoned to a different world. He has only the weakest skill "Copy" and, for being useless, he is turned into a sword-fighting slave in the coliseum. Mikagami is pale in the face of the coliseum, where the worst punishment is that "the loser becomes the winner's slave and is mated". The story depicts how he uses his weakest skill "Copy" with the confidence that he has never lost in a "game" before, and how he manages to defeat the stronger players in a duel as if it were a game.

Kaifuku Jutsushi no Yarinaoshi

Status: Releasing
Genres: Ecchi , Fantasy

"Healing magicians cannot fight alone."

Keare, who was bound by this common knowledge, was exploited again and again by others. But one day, he noticed what lay beyond healing magic, and was convinced that a healing magician was the strongest class. However, by the time he realized that potential, he was deprived of everything. Thus, he used healing magic on the world itself to go back four years, deciding to redo everything. This is a heroic tale of one healing magician who became the strongest by using knowledge from his past life and healing magic.

Note: Includes the prologue.

Sengoku Rance

Status: Finished
Genres: Action , Ecchi , Fantasy , Hentai , Romance

Sengoku Rance is the tenth release of the Rance series launched by Alicesoft. The story takes place during the 4th sengoku (warring states) era of JAPAN, an area of the Rance World which parodies medieval real-world Japan.

Sengoku Rance picks up where Rance 6 left off. Rance, after saving the nation of Zeth from destruction, ran away so he won't have to marry the princess. He and Sill ended up in JAPAN for a hotspring trip, upsetting the power balance of JAPAN, and sets the unification of its provinces in motion. Meanwhile, an ancient evil power stirs from its slumber...

The actual story of this manga follows the daughter of one of the feudal lord defeated by Rance. She is the last guardian of the three sacred treasure rumored to end the conflict in JAPAN and is now protected by Uesugi Kenshin.

Teisou Gyakuten Isekai de Sukebe na Bijotachi ni Kakomarenagara Boukensha Seikatsu

Status: Releasing
Genres: Action , Adventure , Comedy , Fantasy

35-Sai no Sentaku: Isekai Tensei wo Eranda Baai

Status: Releasing
Genres: Action , Adventure , Comedy , Ecchi , Fantasy

Kigenzen 10000-nen no Ota

Also known as The Otaku in 10000 B.C..

Status: Finished
Genres: Adventure , Comedy , Fantasy , Hentai

Even though this story is from the past, things like big breasted milfs are timeless! FAKKU is back with a prehistoric tale that was almost lost to time, The Otaku in 10,000 B.C. by Nagashima Chousuke

Our first Isekai release is centered around a hopeless otaku named Ota. Unlucky at love and with nothing going his way, Ota's world is turned over when he’s magically transported into a land that time forgot. Surrounded by nurturing, big breasted cavewomen with seductive banging bodies, Ota’s going to have his hands full teaching them a bunch of firsts in the history of sex!