The story takes place on a small fictional island in Japan called Rokushiki Jima (6 Ceremony/Equation Island). In this island, there is a festival held every year called the Rokushiki Sai where young girls on the island borrow the power of God and fight each other. There are 6 head families on the island, who succeeds individual fighting techniques and manages the festival tournament.
The Day-side scenario is the original part, featuring the visible side of the tournament.
The main character is Rokushiki Nanaki, who’s the new head of the Rokushiki family and the Miko arranging the tournament. She’s irritated because she can’t enter the tournament herself because of her position and tradition. She was so confident about her fighting skills that she was certain that she will win if she participated. She even beat her own parents, but that doesn’t change anything. However, her 4 friend were the participants of this year’s tournament. The girls are put into a cage surrounded by a magical barrier and with the divine power borrowed from God, fights until one loses consciousness.
The new evening side scenario features some of the other family members and the hidden bloody side of the festival.
Other than the 6 major families, the island had 4 sub-families, which were replacements in case something happens to the 6 families. And addition to that, there was a system called the Shadow Sakura Festival, where the 4 family member can challenge the head of the 6 families and can replace them by force.
Misakura Tomoe is the main character of this story. 10 years ago, she was challenged by Toritari Tsubasa, in the Shadow Sakura Festival. Everyone acknowledged Tsubasa’s strength and the battle between Tomoe was held in form of just custom. However, using dirty tactics, 7 year old Tomoe defeated Tsubasa who was 10 years older than her.
Tomoe remained to be the head of her family, but because how she fought was unfitting for the head, her skills were sealed with a magical rope wrapped around her leg by the Rokushiki Miko. Tsubasa’s sister, Toritari Kaina also despised Tomoe, and swore to defeat her in a justified battle.
10 years after that incident, a new Shadow Sakura Festival was taking place. Misakura Tomoe was challenged by all the four sub families.
Doujin, but there is an English review and translation. It had pretty much zero attention since English patch release, so reviewing it.
Human, monsters, and beasts... The world doesn't forgive them... There is a town where mysterious cases often happen. The ones who have special ability called Enja. The origin of Enja is "devil". They get together as if led by something unseen and kill each other.
Sora is an Enja boy. He lost his parents several years ago and now lives alone. His life is full of peace, rest, and destruction. Peaceful school life with friends. Strange dreams he has every day. Battles against devils that appear in the town at night.
His "contract" leads him to a hell of sadness, fights, and carnage. He also meets some girls along the way. Love, obedience, subordination, immorality, and desire. Sora, who doesn't know how to love, is a broken human. What does Sora get, what does Sora lose through contracts with the girls? At the end of the contract, he meets the last devil...
Game has many English reviews, but there is no video playthrough, so I'm in for review. Naturally.
3. Dareka no Tame ni Dekirukoto ~Innocent Identity~ 誰かのために出来ること～Inoccent Identity～  Giga
A boring life. Takaya always thinks, "I hope something interesting happens..." One day, a girl transfers to his class. Her name is Aya and she came from a small town in the country. Also, she starts living at an apartment Takaya takes care of. Her presence is a symbol of changing life. Aya is always cheerful and his school life gradually changes. "Is this my school life I wanted?" Because of Aya's innocent behaviors, he also gets to know different characters of his classmates. Yes, this is just the beginning of his new school life.
Development is long and super dull. It takes a lot of time to figure out who is that someone referred in the title, but it does not make it worth it at all. Typical Giga.
There is a super-rich school. It is really hard to pass the entrance exam. Yes, it is a common knowledge the chosen few are allowed to enter the school. But one day, the school announces that they are accepting in a tuition-exempt student.
The main character is Kazuki. He hears the news as well, but he is not interested in it. Several months later, the result comes out. The student who passed the entrance exam is Kanade, Kazuki's old friend. "Oh, what should I do...?" She never expected she would pass, so she is totally panicked.
When she receives a document from the school, she gets surprised again, "Students are required to have butlers." Kanade says to Kazuki, "Please be my butler!" Like this, he reluctantly becomes her butler... On their first day at school, they enter a completely different world from their old one. Kazuki and Kanade's new school life now begins...
There are English reviews. As promised earlier, not reviewing it.
5. Mikoko みここ  Citoron Soft
Takeru lives a peaceful life with various attractive girls. For your information, they are all miko. But one day, his life suddenly changes. A mysterious creature and a girl with black hair appears in front of him and says, "You'll need to choose a next Miko God and live with her as a partner!" "Miko God? Choose someone? Can I really do that?" When he is at a loss what to say, the girls around him give the answer to him, "Choose a girl you like the best." Well, a new love story starts now...
Basically, a moege with very long process of getting to know a heroine and over 10 H events per heroine.
Hajime is a member of the handicrafts club. He's the one and only male member, but he's an expert at it because his father taught him so well. He enjoys his school life with other club members and classmates, but his life dramatically changes one day. He suddenly falls down unconscious and is sent to hospital.
A while later, he learns that his days are numbered. Hajime decides, "I'll die without ever showing a sad face to my family and friends. I won't tell anybody about my illness." But his childhood friend, Hikari, finds out about it anyway. It isn't long before all of his friends know. Nobody wants to believe it, but...
"We'll just pretend we don't know about his illness..." They decide to smile in front of him and cry inside their hearts...
There are English reviews.
1. Meitantei Conan & Kindaichi Shounen no Jikenbo: Meguriau Futari no Meitantei 名探偵コナン&金田一少年の事件簿 めぐりあう2人の名探偵  Bandai Namco Entertainment Inc. 1 2
After receiving a distressing correspondence from a former classmate requesting his presence, high school detective Hajime Kindaichi travels to Twilight Island to investigate the anguish behind the letter.
Meanwhile, as fate would have it, Conan Edogawa has been introduced to a modern folktale by Professor Agasa, on an island in the south that serves as a premiere tourist resort, inhabitants have been mysteriously disappearing for extended periods of time before suddenly returning without explanation. What's more: When they disappear, they are transported to an alternate version of that very same island. Intrigued, Conan consents to investigate the case while his companions go on a vacation at the tourist trap known as Twilight Island.
As the mystery deepens and it becomes clear their two cases are more related than it first seemed, a grand case unfolds that requires the unmatched reasoning powers of both young detectives.Console exclusive, including it just because of missable reviews
2. Another Code: R Kioku no Tobira アナザーコード: R 記憶の扉  Cing 1 2 3
Set two years after the events of the previous game, a now 16-year-old Ashley is invited by her father to visit the campground of Juliet Lake. As the story progresses, Ashley attempts to find the truth about her mother's death.
Console exclusive, including it just because of missable reviews
3. Chaos;Head Noah  Nitroplus 1 2 3
"If you were God, and your delusions could become reality. What kind of delusions would you imagine? A sensual world? A dystopic society? Destructive punishment? Or..."
Nishijou Takumi, a shut-in gamer and anime otaku, spends his days locked away in a shipping container while occasionally attending classes. In his place of residence, Shibuya, a bizarre string of serial killings are set in motion as he is dragged into the ordeal.
Chaos;Head NoAH is the Director's Cut release of Chaos;Head, adding 6 new routes, changes to the story, new CGs and a revamped True Ending.Fandisc
4. Sara Sara Sasara さらさらささら  Atelier Kaguya 1
One day, the main character gets involved in a mission to save God due to some reasons. To save God, he needs to unite with miko both physically and mentally in his dream using the power given from God and strengthens bonds with them. Of course, he can do anything he wants in his dream.... At a different place in a different costume...? He strengthens the bonds with miko like this, but the bonds that only exist in his dream gradually affect his real life...?
Nukige, including it just because of missable review
5. Yoake Mae yori Ruri Iro na -Moonlight Cradle- 夜明け前より瑠璃色な -Moonlight Cradle-  August
Called the last part of the Yoake Mae yori Ruri Iro na story; -Moonlight Cradle- follows the ending of the expanded storyline of the PS2 version Yoake Mae yori Ruri Iro na -Brighter than dawning blue-.
It tells of a new story involving all the heroines from the original as well as Estel Freesia and Tooyama Midori who made their first appearance on the PS2 version. Also included is a brand new heroine Cynthia Marguerite.Fandisc