Manga like Oni-Deka!

Giant Ojou-sama

Status: Releasing
Genres: Action , Comedy , Ecchi , Fantasy , Sci-Fi

Fujido Oriko is the buxom young head of the Fujido Zaibatsu, a group that has a monopoly on Japan's vending machine industry. And serving at her side is her personal butler, the eccentric Dr. Sebastion.

When a monster suddenly attacks the city, Dr. Sebastion slips his ojou-sama an experimental energy drink his team in R&D has been developing. As a result, she quickly finds herself growing into a giantess, matching the attacking kaiju in size! Will she be able to stop his rampage, or at the very least, keep her dignity intact?

Tags: Ojou-sama , Female Protagonist , Shounen , Episodic , Surreal Comedy , Tokusatsu , Kaiju , Robots , Parody , Nudity , Aliens , Meta

Chieri no Koi wa 8 Meter

Status: Releasing
Genres: Comedy , Fantasy , Romance

A childhood friend and transfer student that's 8 meters tall...?! The start of a literally larger-than-life romcom!

Tags: School , Female Protagonist , Male Protagonist , Cute Girls Doing Cute Things , Heterosexual , Monster Girl , Shounen , Primarily Teen Cast

Daikanojo

Status: Finished
Genres: Action , Comedy , Romance , Supernatural

Heartthrob is going to save the world?!
From a life-size high school girl, a new girl of the century has finally appeared.

Mitsushima Hikaru (15) is a run-of-the-mill freshman who holds an unrequited love towards her senpai (a sophomore) from the astronomy club. But one day, after she makes a wish upon a falling star, she becomes fused with the star (alien) for some reason. Hence, she obtains the strange ability to grow into a giant.
That is when Hikaru's life goes for a complete change, as she begins to do battle as a giant heroine?!

Tags: Kaiju , School

Maji de Kawaii na Koitsu

Status: Finished
Genres: Action , Comedy

Tags: Kaiju , Superhero , School , Heterosexual

CYNTHIA THE MISSION

Status: Finished
Genres: Action , Comedy

Cynthia comes from a family of assassins. She acts as a part-time student who's BALD (she only appears that way), and she continously receives orders from the organization to assassinate people. The story opens with her and 2 friends going shopping for hair growth solution, when a new mission comes up. Her master, who taught her everything she knew 3 years back, was hired as the target's bodyguard. The two must fight, but what will the outcome be? Read on!

Note: Volume 6 sole consists of a side side to the main series (7 chapters in total.)

Tags: Assassins , Seinen

Shoujo 70M

Status: Releasing
Genres: Action , Sci-Fi

Tags: School , Henshin , Super Power , Superhero , Swordplay , Military , Tokusatsu , Kaiju , Female Protagonist

Chou Dokyuu Shoujo 4946

Status: Finished
Genres: Action , Comedy , Romance , Supernatural

A huge monster suddenly attacks Makoto's school, then a giant girl comes out of nowhere and protects the school. However, during the fight Makoto shows his heroic spirit, and the giant girl has now fallen in love with him, and wants to marry him?!

Tags: Shounen