Animated promotional trailer for the Persona 2: Innocent Sin, a game for PlayStation. Included as a bonus on the Persona 2: Eternal Punishment Bonus Disc.

The stage is Ayanagi City, a city near the Japan Sea. It is a futuristic city that was built to carry out the recovery from the calamity caused by the "Apathy Syndrome" ten years previous. High school student Shin Kanzato with his little brother Jun, meet with their elder brother Ryou, who is the chief of the Ayanagi City Police, again after ten years. At that time, a series of strange incidents happen in Ayanagi City such as the crew of a submarine that suddenly disappears while in their submarine, or a spiritless symptom which disturbs the world after ten years, or the case of the inside out corpse where a student took on a cruel appearance. Ryou tracks down the organization behind the string of incidents, and having become involved in the incidents, Shin awakens the "Persona."

[Source: Wikipedia]

Persona 4 takes place in a rural town named Inaba. There have been mysterious murders occurring whenever there was fog after heavy rain. There were also rumors about a channel on television airing only at midnight called Mayonaka TV, during which it is said that one can see his/her "other half" when staring at the TV screen.

After hearing about a recent unsolved murder which occurred during the fog, the characters—Narukami, Chie, and Yosuke—discuss how each of them had attempted to watch the mysterious TV channel and witnessed the murder victim. The protagonist later realizes that during midnight when the channel is on, his body can phase into his television set as a gateway to enter another world infested with shadows.

After discovering this, they all decide to explore. When first completely entering the world, dazed and confused, Narukami meets Teddie. Mayonaka TV and the town murders seem to have a connection. The murder victims may be merely victims of Mayonaka TV. Everyone decides that they will together try to solve the mysterious murders by exploring the hidden world of Mayonaka TV.

[Source: MyAnimeList]

Unaired episode included with the 10th blu-ray volume adapting the true ending from the original PS2 game.

The "Dark Hour"-the time which exists between each day. During those hours, the town stands still, the people are　transformed into mere objects, and countless monsters called "Shadows" run rampant through the town. Only the Personas, beings with special powers, are able to combat these creatures.

[Source: Amazon]

After realizing the value of life and the importance of his own allies, Makoto finally got his smile back. He finds himself learning more about those comrades and getting closer to them. Makoto wishes that everything will continue just as they are. However, little by little, the pieces and people in Makoto's new, happy life begin to fall apart.

[Source: Amazon]

Spring. A rural town, far removed from the city, that spends its time peacefully. A boy arrives at Yaso Inaba Station, where the cherry blossom petals are falling. His name is Yū Narukami. Due to his family's situation, he moves to Inaba to live with his uncle, and attends Yasogami High School.
From there, his school life begins: The shopping mall after school. The serial murders happening in the town. The Midnight Channel that comes on late at night...

What days are waiting for Yū and his friends "this time"?

[Source: official website via Anime News Network]

After Yuu finds out the past and circumstances of Adachi, he makes a single decision in order to save him.

[Source: Anime News Network]

As the season turns to autumn, Makoto and the other members of S.E.E.S. inch ever closer to the end of their battles with the Shadows. Through the battles, some must face the deaths of friends and family, some must notice what precious things must be protected, and some must find meaning in the conflicts that have occurred.

[Source: Amazon]

To know death, to gaze at death, to face death. Makoto and his allies have grown through the many meetings and partings they have experienced. Their fight might not be for the sake of the world, but for themselves. Even so, they have continued to fight, believing that there are peaceful days waiting at the end of the battle.

[Source: Amazon]

The story focuses on the 16-year-old Protagonist after he is transferred to Shujin High School in Tokyo. Staying with friends of his parents, he meets up with two fellow students, problem child Ryuuji Sakamoto and withdrawn An Takamaki, and a talking, shape-shifting cat-like creature known as Morgana. During his time there, feeling suppressed by their environment, the four form a group known as the "Phantom Thieves," working together to carry out heists and encountering mysterious phenomena along the way.

[Source: Wikipedia]

Set in modern Tokyo, the story chronicles the adventures of an eclectic group of teenagers who call themselves the “Phantom Thieves of Hearts.” Together with their metaphysical manifestations known as their Personas, the group seeks to solve crimes by reforming the source of corruption within people’s hearts.

[Source: Crunchyroll; emended]

#1: Few days after battle against Akechi. Ren, who was helping out with the cafe, saw a cross word puzzle magazine on the table and saw Akechi's handwriting besides a solved crossword "Seigi no Akashi (Sign of Justice)." In order to investigate the meaning, he walks around the street under the cold winter snow while thinking back at the memory with Akechi. The meaning that revealed and Akechi's feeling is...

#2: Valentine's Day Omibus Story featuring Ren Amamiya