Write a lengthy and descriptive short story fanfic that crosses over the King of Braves GaoGaiGar, ZETMAN, Evangelion, the anime series Betterman and Elfen Lied, with the following changes to characters being included:

. Kohta replaces Keita Aono, the protagonist of Betterman. Kaede, his childhood friend and also the psychotic serial killer known as Lucy, replaces both Hinoki Sai from Betterman and Rei Ayanami from Evangelion.

. Mamoru Amani was created as a result of an attempt by NERV to restart PROJECT NET which they had initially collaborated with the Amagi Corporation to initiate as an attempt to create the perfect human to pilot the EVA Units, instead of being a refugee from the Green Planet of the Trinary Solar System like in the GaoGaiGar canon. 

He is still rescued by the giant mech lion Galeon and brought to Isamu and Ai Amani as a baby, but this is due to a sympathetic NERV scientist reprogramming Galeon to carry the infant Mamoru to a safe location after the test site is attacked by EVOL.

. This version of Mamoru is a girl named Michiku, and possesses both the artificial angel abilities of Rei from the Evangelion canon and Jin Kanzaki's ability to transform into ZET. She is also a Sillipet-class diclonus, although she tries to keep her horns hidden and only uses her vectors when necessary. 

. Galeon is an experimental combat mech created by NERV and EVOL just before the creation of Jin Kanzaki and Kaede from the technology retrieved from the ancestral race which created the Angels, instead of being an extraterrestrial combat unit created by Cain. 

. Jin Kanzaki was kidnapped by agents of EVOL and forced to pilot EVA-Unit 01 under the name Shinji Ikari, due to Gendo Ikari's assumption that he was the NERV commander's missing son. He unconsciously uses his power as ZET to heal from EVA piloting and fighting the Angels, enhancing his abilities even in his human form. After the defeat of the Angels and the subsequent fall of NERV, "Shinji" escapes and soon reclaims his true identity as Jin Kanzaki. 

The plot of the story should be roughly equivalent to the series of events listed below, each event occurring in chronological order:

. When fleeing Tokyo-3 after the massacre at the Amagi conference center, Jin encounters Michiku and the Earth Defense Brigade Gutsy Geoid Guard fighting off a horde of Players unleashed upon the city by the sinister de-facto leader of EVOL Seiji Haytani and reluctantly helps them defeat the monsters and save the city. Jin manages to escape after this and make his way to a bus heading towards Kamakura, but Michiru is able to sense him and wonders who exactly was this mysterious vigilante with powers so similar to hers. 

. At Kamakura, Jin lodges at the Maple Inn and quickly adjusts to life in the country as he tries to figure out what to do with his life, sneaking out of the hotel at nights to keep his vigilante skills sharp and control his transformaton into ZET. 

.Meanwhile, Kohta forms a harem with Kaede, Yuka, his younger sister Kanae who is also a diclonius, the younger diclonii Nana and Mariko, and the orphan girl Mayu after the girls confront him and reveal the true extent of their feelings for him.

. Jin's antics in Kamakura reach the ears of the Institute, which is under the impression that Lucy is causing trouble after the escape from the facility.

. The psychotic ex-ROKAF [Republic of Korea Armed Forces] commando turned elite SAT operative Bando meets Jin instead of Kaede/"Lucy"/Nyu and is brutally thrashed by the Black Sweeper, with the Institute being barely able to save Bando's life. 

. Meanwhile, Michiku and her family head to Kamakura on vacation, staying at the Maple Inn as well due to the Amani family being a sub-branch of Kohta's family and the Amagis. Kaede and Yuka immediately sense that the serious and determined, but also chipper and happy young girl staying at the Inn with her family is a diclonius like them, although Kaede is confused as to why she also senses the same spark of divinity that she herself has due to her status as an artificial angel inside of Michiku. 

. Jin discovers Kaede's diclonius nature after she uses her vectors to clean up a room when she thinks no one is looking, and also discovers that Yuka and Kanae are diclonii as well. He keeps this information to himself and continues trying to stay under the radar and master his powers. 

. Meanwhile, Michiku discovers that Jin was the mysterious vigilante who helped her and the Gutsy Geoid Guard stop the Players in Tokyo-3 and confronts him, revealing that she also has the ability to transform into ZET. With the threat of the Institute looming, Jin reluctantly agrees to help Michiku. 

. During Lucy's confrontation with the SAT team sent to kill her, Jin discovers the location of the Institute and manages to sneak in, gathering evidence of its horrendous experiments on innocent girls and young women who just happened to be born as diclonii before making his escape. He reports this information to Michiku, who contacts the GGG. The GGG then send in a strike team to wipe out the Institute.

. The story ends with Kaede celebrating the destruction of the Institute, which is stated in the local news as a result of the flooding of a nearby island. She begins to hug Kohta and cry upon his shoulder, which causes the other girls to jump Kohta as well. Jin shakes his head at this and comments that Kohta and the girls of his harem are probably going to be parents very soon, only to see Mamoru blushing in embarrassment as she looks at the girls showing their love for Kohta. 

Jin then sighs and takes a sip of his coffee, knowing that Mamoru will most likely join Kohta's harem as well.