Because of that, I thought I should share my thoughts about the game and what it improved on and so forth. There are some spoilers ahead, which I'll highlight in red so you guys can choose not to read if you wish. So with nothing else to say, let's get going
Intro
Estival Versus picks up from where it left off from Shinovi Versus (Which I did not play since I'm not spending $199 for a system just to play the game >_>). It picks up to two girls from the Hebijo squad named Ryobi and Ryona, who visit a grave to pay respects. But while doing so, overhear a ceremony taking place which sends spirits of past shinobi into peace by relieving them of their past regrets. Ryona and Ryobi then notice a spirit which they recognized as their older sister, rushing without thinking before being struck with a beam of light. When the light fades, they end up somewhere else and are attacked by rouge ninja's. After dispatching them, they run until they end up on the beach, where they find their sisters spirit, where they are told of 8 days that can never be forgotten.
Afterwards the intro that plays every time you start the game off from there plays, which is pretty nice visuals to be honest.
Gameplay
Gameplay wise, Estival versus is the most polished and smoothest I have played yet. While frame rate drops occur, they don't happen as often and it really doesn't obstruct from the gameplay. Unlike the last two I've played which are both in a linear 2D plain, Estival versus is truly 3D movement, allowing characters free movement in every angle. Combo's and attacks feel satisfying to pull off, specially when you managed to snag in multiple enemies all at once and take them out in one fell swoop.
The way characters level up are divided into 3 ways besides just leveling up (The level cap is 50 as always), this system makes a comback from Burst known as the 'Yin, Yang, Flash' system or 'Flower of Balance'.
Flash: A mode when a character stays in their usual attire, possessing their normal move sets with no access to their special moves, but as Flash improves, it allows easier chaining of attacks an a significant improvement in EXP and Money gain, so this mode is more suited for leveling characters up quickly or gaining money.
Yang: A mode which the character uses their shinobi powers to transform into their combat uniform, usually matching the users personality and fighting style. This gives them improved attack and defensive parameters as well as more aerial capabilities.This also allows them to use their ninja arts which can deal devistating damage and/or deal AOE attacks for massive combo's.
Yin: A mode which the character...eh strips (Yes in a literal fashion) all defenses and relies on an all attack frenzy for massive damage. In this state, they're capable of chaining infinite combos on the ground and are also able to deal aerial raves at lesser times. While attack increases drastically as well as being able to use ninja arts, defenses are reduced to counterbalance the sudden shift in power, so be cautious as one mistake could be the last
Using all these modes in appropriate situations can change a battle to tide in your favor, so mix it up. Also by using these modes often, they level up in use as well giving more benefits like health regeneration or even higher damage, so use and switch them up often.
There's also some chapters in the game where you team up with an AI controlled ally, but honestly, these allies are almost always useless. The AI are even dumber than the ones in Deep Crimson since you can't even change to control them in turn, so instead, the only input you have is having them assist you when you're doing an aerial rave, that's it
Game objectives are simple, either defeat an enemy group, and enemy boss. There are ones with time limits, but these are honestly easy. Difficulty of the game ranges from easy, medium, and hard, which only increases the amount of damage AI deal as well as their defenses. Obviously higher difficulty means higher EXP and Cash that can be spent on the in game shop. The game may seem tough at first, but it's very easy to level up.
There's also online multiplayer features into the game. Though since the game isn't so popular on the west, the online servers tend to be...desolate. But if you do get a chance to play online, there are 5 Modes (I think) online
Online Deathmatch: Probably the most basic online feature, you go against other players from as much as 10 to as little as 2 online and duke it out. Pretty straight forward
Point match: This mode is where you are against other players and aim to get a better score by eliminating more enemies that spawn in the game. You can also attack your rivals for additional points or to slow them
Capture the Bra: It's exactly what it sounds like. You and other 4 will be against a team of other 5 players in a battle which you defeat spawned AI enemies to capture their bra's. The more you defeat, the more bra's you have on your flag and the stronger the character in possession of the flag gets.
Panty Collection: Similar to point mode, but instead you simply collect panties that rain from the sky, the player with the most wins, simple as that.
Guard the Platform: This is where you and other 3 players defend a platform from enemies who are out to destroy it. Last as long as possible to get higher rankings.
Miss Shinobi Pagent
The online mode has one more feature known as the "Miss Shinobi Pagent" In which you are able to pose your character in the Dressing room mode of the game. Once you pose your character to your desire, you can share it for the world to see if you into that kind of thing. I will say that some of the submissions online are surprisingly creative, others are just tasteless. They always post different themes each week, so check in often if you want to participate. Oh and I guess I skipped it here in the review but uh...
The game has a mode offline called dressing room, as you can tell, it's basically a mode where you dress your character to your desire, giving them either DLC costumes you buy online or ones you bought at the store in the game itself, dressing them up, posing them, changing hair and clothing color, and even touching them in a not so discrete mode in the game where you can grope and slap their butts or breasts. These can result in rather interesting dialogue depending on the character you choose to molest. If you do it enough, a heart gauge on the top right will fill up and allow you to go in for the kill and kiss them. I will admit it's rather cute, specially with some characters.
Graphics
Easily the most appealing of any of the series so far (On the PS4 obviously.) the graphics and frame rate are smooth, like silky smooth. With crisps images and nice detail with each character, it's hard not to ogle at them, but at the same time, the bodies they have are so similar, that if you switched the heads of the characters with another's body with a few exceptions, it wouldn't be noticeable at all, but it's about visual appeal, speaking off...
Music
Spoiler: show
Verdict
Overall...I think this game should be given a shot, or hell just the series in general since while it is heavy o the fanservice, playing the game is so fun and surprisingly addictive that you'll often be ignoring the lewdness for gameplay. Replaybility is high, but online is rather void due to it being unpopular.
Gameplay: 8/10
Story: 6/10
Graphics: 9/10
Music: 8/10
Replay value: 7/10
Total: 7.5 /10
I don't mind people enjoying a fetish, but the game series is just TOO biased. 
