Valkyrie Drive, by the Senran Kagura guys (contains YURI fanservice)

Background:

Year 20XX or whatever - the Armed/Arms Virus emerges in girls in their teens-20s and allows them to become weaponized (Liberator/Ecsta). Due to the nature of this, 5 man made islands were create in order to treat the carriers/infected.

I don't know the story to Siren so I won't bother with that.

Mermaid - their plan was to prove they could be reintegrated into society while still having the virus. Bhikkuni - their play is to treat/remove the virus from the infected.

Rinka & Ranka get sent to the island care of their parents. Mana and Momo kind of end up there.

Here they live on the island, go to school etc., and school is part of the treatment program.

The six main girls in Bhikkuni are special as they have a mutation in their virus (VR Virus) allowing them to use both the Liberator/Ecsta abilities (considering they point out this is rare in Mermaid), and are set up in a special class and program for treatment.

They meet the Chairwoman (Rijichou-sensei) who is in charge of administration of the island and Echigoya, the shopkeeper.

The other teachers on the island are the 4 god robots - Kongou, Gouzanze, Daiitoku, Gundari (equivalent of the 4 guardian beasts and part of the Godai Myouou, more on this later).

Anyway... in order to find a cure, the premise is the girls have to fight each (for research purposes) and there are school wide battle royales that occur, and people get ranked etc.

Viola is an elite member of the VR Class and lives in the suitably 'elite' section of the island. Koharu is more or less the 'head' of the 5th Generation class (valedictorian, class pres, whatever) Manpukumaru seems to be hanging around just because she likes eating.

To advance in the treatment program, the girls have to defeat the 4 gods in combat in order to move up and go to the next class/level.

Each girl though has her own goals/desires which of course clash with the others.

Rinka - wants to get treated and go home Ranka - wants to be wherever Rinka is and protect her Momo - wants to find her lost memories Mana - wants a place to belong - in turn she becomes the vice-head of the 5th gen, and wants Koharu's spot. Viola - wants to be #1 (by extension find a way to beat Koharu or have Koharu acknowledge her) Manpuku - wants tasty food (this is used constantly) Koharu - wants to protect the island

There's a few episodes of constant head butting between Momo, Mana, Ranka etc., and once it gets to the point there's a bit of a power struggle among the girls (trying to go to the higher classes etc.) more battle royales, the Kagurazaka sisters fighting each other etc. etc. Rinka ends up facing up against Gouzanze and stuff gets weird.

Upon smashing the robot cores, naked girls start flying out of them, much to the confusion of everyone. Rinka at this point thinks there's something horribly wrong with the island and wants to find out what's going on. Numerous attempts are made to shut her up/keep her from digging.

Eventually it splits to 2 general factions and the split will vary depending on if you go to Order or Chaos.

Rinka's faction wants to find out the truth, and eventually find a way to leave the island. The Island faction is everyone else who wants to shut Rinka up and maintain status quo.

Momo ends up coming around and apologizes and joins Rinka. Manpuku will join whoever feeds her. Mana is on her power trip so she opposes Rinka. Koharu and Viola are observing this, but are generally against Rinka. Ranka doesn't want her sister to get hurt, but at the same time is caught in between both groups.

A few more fights against the 4 gods (and more naked girls getting knocked out of cores) makes everyone generally leery/suspicious as to what is going on.

At best, they should stop digging is what the Chairwoman tells them but Rinka selfishly continues to be nosy.

They end up threatening Echigoya (who has been around for the 5th generations) and question her about the dark secret of Bhikkuni.

There is an outside organization (game refers to it as AAA) that exists that wants to use the infected for their own twisted means (weapons, mercenaries etc.) and the barrier formed by the 4 gods in Bhikkuni prevents them from invading and taking the girls. More on this later again.

Rinka tries to ask around about the previous 4 generations of graduates - this fails miserably as most of the residents of the island that aren't students are actually robots. More suspicious.

After threatening Echigoya some more (and then being disciplined by Gundari) Rinka will want off the island.

The following gets implied/explained

The virus cannot be treated in this particular situation. The last graduating generations never left the island at all. Each of the 4 gods was the 'head' student of the previous class. They were going to turn either Mana or Koharu into the 5th god Kirin. The reason there were people in the robots is they activate their Ecsta form and are effectively the 'parts' of the 4 gods, and are put into hibernation within the body of the robots. The people are all the last 4 classes of graduates. The reason for this is so that it protects the 'time' of the Valkyries so that they can wait out the AAA, as well as hopefully fair along enough in the future, they would have found a cure for the virus. Gundari is the Chairwoman. The video screen version is only that, she no longer has a human/physical body. Echigoya was the chairwoman's partner during the 1st generation class, but ended up getting severely hurt at some point. You notice this in the OP movie of the game that even her 'human' form is computerized/digitized when she trips.

Then we split routes:

Chaos Route - Ranka doesn't want to help her sister and goes against her in seeking out the truth. This leads to a slugfest between them (and even though Rinka technically loses, she plays the stubborn 'I can still fight' card and is pretty much an invincible zombie in the novel scene. They finally end up beating Gundari at the end and say that they will protect the island together from the outside forces.

Order Route:

Mana ends up betraying the island faction through the power of friendship (it starts getting hokey again) and they go through more of a prevent the 4 gods from sealing the island/creating Kirin situation.

Each of the 4 gods controls part of the island barrier, so defeating them will destroy the barrier and will allow for the inhabitants to leave.

In this situation even the normal students want out because they have no desire to get turned into robot parts and put into robo-hibernation.

But even after beating the 4 gods, they have to destroy/stop the power core which would be used to create the 5th god.

After beating Koharu & Viola, Rinka shows her resolve that no matter what might happen (in this case the AAA invading) that the Valkyries should be the ones that decide their own future and they won't become weapons of mass destruction etc. and they are the ones in control of their destinies.

Koharu makes contact with 2 of the islands (Mermaid & Siren) to establish alliances against the AAA in case of an impending invasion - notably this is kind of plot-hole-ish since Mermaid ends on a totally different note...

Then Ranka cuts viola off by destroying the table. Ranka said she won’t let Viola tarnish Rinka’s reputation using petty tricks. And proceed to reveal Rinka’s real three sizes, 93-57-84, a H-cup. Her favorite food is bread with cream filling and her current dilemma is finding a country where she can marries her little sister. Her strong point is her cuteness and her weakness is that she’s too cute. Rinka ask Ranka how did she know the precise number of her three sizes and ask what’s this about marrying little sister. Ranka thought Rinka was embarrassed and tell her to just declare it to everyone that they love each other.

Valkyre Drive: Bhikkhuni Will not be Censored for the West P Qube Explains

I can confirm that Valkyrie Drive: Bhikkhuni will be brought to the west in its original form, with content completely intact. It will be with a Japanese dub and English subtitles.

We generally don’t take on these kinds of projects if we’re not confident we can release it in the west without cutting or changing content. Changing the source material kind of defeats the purpose of doing it in the first place, so that is not something we even consider unless we literally have no other options. In terms of platform holders and ratings boards, you’d be surprised what you can get away with. Gal*Gun: Double Peace passed quite painlessly for example.

Where issues might arise in terms of publishing, is selling the title in to retailers who might be hesitant to take it. A game doesn’t just appear at retailers when we release it; a big part of the process is to go around and sell the title to each individual retailer and negotiate numbers and prices. Trying to present a game like Valkyrie Drive to a group of executives at a major retailer, who might be in their 50’s and don’t play or particularly care about games, and convince them that Valkyrie Drive is amazing and would do really well on their shelves or their website, can be quite the challenge for the sales team.