Summary of the first season of the show, as seen from Rikka's perspective with new elements.

Takumi, a gifted chef, just landed a new job. He works at the Astro Manor apartment building that offers breakfast, and there he encounters the beautiful landlady—Mira. It’s love at first sight, and he hopes to charm her, but the quirky tenants and bizarre phenomena don’t make it easy. He even learns by pure chance that Mira is secretly an alien! Will their love survive these unearthly oddities?

一种名为“卡巴内”的钢铁怪物忽然出现在人类社会之中，造成了巨大的恐慌。被它们袭击过的人类，会拥有起死回生之能力，并且亦开始袭击同类。在怪物猛烈的进攻之下，人类社会很快就四分五裂，幸存下来的人们建立起了城寨“驿”，靠着彼此互通有无苟且残存。驿与驿之间，唯一能够通行的交通工具是装甲蒸汽机车。
生驹（畠中祐 配音）是一名以蒸汽锻冶为业的热血少年，他发明了武器“贯筒”，希望能够为消灭卡巴内贡献出自己的力量。一次偶然中，生驹邂逅了神秘的少女（千本木彩花 配音），与此同时，一场暴走事件的发生使得生驹所生活的显金驿彻底沦陷，卡巴内不断的产生着，生驹并没有选择逃跑，而是拿起武器，挺身而出。

位于东京西部的巨大“学园都市”。在总人口达230万人，其中约8成是学生的这座都市中，实施着超能力开发的特殊课程，学生们的能力被给予从“无能力Level 0”到“超能力Level 5”的六阶段评价。
高中生上条当麻，也是住在学园都市的学生之一。他由于隐藏在右手中的力量——只要是异能之力，就连神的加护都能消除的“幻想杀手Imagine Breaker”，而被评价为名落孙山的“无能力”，过着充满不幸的人生。
而上条的学生生活，由于暑假开始时从天而降的纯白修女而发生了巨大的变化。自从与逃离“魔法”世界的她——“禁书目录茵蒂克丝”相遇开始，上条就被卷入了各种各样的事件中。统率学园都市的“科学”方、与茵蒂克丝关联的“魔法”方，在惊险地解决双方事件的过程中，他的人际关系也逐步扩展。之后，魔法一方的十字教最大宗派罗马正教，终于注意到上条的存在……。
如同呼应魔法方一般，科学方的学园都市也有所动作。但也有与逐渐开始对立的世界动向抗争的人不断出现。那些通过与上条有所关联，而使命运大为改变的“英雄”们。
他们挺身而出与世界对峙。如同上条当麻做过的那样。
科学与魔法第三次交织之时，故事将大幅推进！！

Issei and the 2nd years attend a class trip to Kyoto for well-deserved relaxation, leaving the senior and junior class students of the Gremory family behind. However, once there, they fall under attack and must win without Rias or their other powerhouses.

The babes and boys of the Occult Research Club are Back! Lovable loser (and bust buff) Issei and his clan of bewitching beauties return for a new season of supernatural tussles and sexy shenanigans—featuring old friends and new enemies! Now that all the girls live in Issei’s home, life seems like nothing but fun and scantily-clad lounging…for now! Join Rias, Akeno, Koneko, Asia, Xenovia, Gasper, and everyone’s favorite Harem King Issei as they fight, fumble, and fondle their way through their demonic high school lives.

The devilish Harem King is back for more outrageous Oppai Battle Entertainment in the scintillating second season of High School DxD! Fans who like their hardcore action spiked with a double dose of fan service won’t be able to pry their eyes off all the scorching supernatural schoolgirls waiting for them in Season Two. So what are you waiting for? Plant yourself in front of the boob tube and watch a harem of devil hotties show you how much fun it is to be bad!

After a draining December, Sakuta is quickly nearing the end of his second year of high school. Since Mai is a third-year student, they don't have much time left together before graduation rolls around. Meanwhile, his sister, Kaede, is slowly but steadily venturing outdoors again. Just as she begins to find her footing, she announces her most ambitious goal yet—attending her brother's high school! Sakuta knows better than anyone how difficult this will be for Kaede, and he's ready to support her however he can. He's just not sure if that's what's best for her...or what she really wants...

Kotaro visits Komada Distillery for a project on Japanese craft whisky. Led by young female president Rui, who took over the family business, the distillery works hard to reproduce its signature whisky, Koma, which they had to stop making years ago. However, not to mention financial backing, too many clues are missing to revive the once lost whisky.

Finally, the day of Mai's high school graduation has arrived. While Sakuta eagerly waits for his girlfriend, an elementary schooler who looks exactly like her appears before him. Suspicious, and for all the wrong reasons... Meanwhile, Sakuta and Kaede's father suddenly calls, saying that their mother wants to see her daughter. She was hospitalized because Kaede's condition had been too much for her to bear, so what could she possibly want now?

Tokyo. Tomobiki Town. Lum, the gorgeous daughter of an invading race of Oni Aliens is smitten with High School student Ataru Moroboshi. A dedicated womanizer, Ataru is unfazed by Lum’s fierce electric shock attacks and continues his daily hunt for pretty girls. With a host of other unique characters, including classmate Shinobu, elegant shrine maiden Sakura, Lum’s best friend’s Oyuki, Benten and Ran, Buddhist Monk Cherry, Ten, the little brat, heir to a wealthy family Shutaro Mendo and the secretly female beauty Ryunosuke… A classic slapstick love comedy where anything goes!

Something sinister is going on in Academy City. The shadows are filled with whispers of an organization cloning super-powered students known as espers. High-ranking master of electricity, Mikoto Misaka, laughs off these stories until she comes face to face with a copy of herself. After learning that these clones — her sisters — are being systematically murdered in a series of experiments designed to turn a sadistic killer into the strongest esper in history, Misaka vows to save her copies and destroy the organization responsible for the project.

As Misaka prepares to face off against the organization’s power-hungry esper, she discovers that she wasn’t the only victim of the scientific forces conspiring within the city — and that’s something Misaka and the girls of Judgement simply won’t stand for.

Wealthy heiress Catarina Claes is hit in the head with a rock and recovers the memories of her past life. It turns out the world she lives in is the world of the game Fortune Lover, an otome game she was obsessed with in her past life... but she's been cast as the villain character who tries to foil the protagonist's romances!

Tsuyoshi Mukohda, an ordinary salaryman, is suddenly transported to another world one day. The unique skill he gains upon arrival in this world is the seemingly useless "Online Grocery." Mukohda is discouraged at first, but the modern foods he's able to bring to his new world using this skill prove to have some unbelievable effects!

In an underground world where tunnels extend everywhere, even though they live in dark and confined spaces, people wear protective clothes and lead quiet and enjoyable lives. Patema, a princess in her underground village, loves to explore the tunnels. Her favorite place is a "danger zone" that her village prohibits people from entering. Even though she's scolded, Patema's curiosity can't be held back. No one ever explained what the supposed danger was. On her usual trip to the "danger zone," Patema faces unexpected events. When hidden secrets come to light, the story begins to unfold.

Natsuo is a high school boy who is experiencing the crushing despair of unrequited love. To make matters worse, the person he is in love with is his teacher, Hina. In an attempt to lift his spirits, he attends a mixer where he meets a girl named Rui. The two sleep together, expecting never to see one another again, but fate has other plans. His life suddenly becomes more complicated when his father comes home and announces he has remarried a woman with two daughters whom Natsuo has met before: Hina and Rui!

天才青年厨师拓己被解雇后，在一家名为 Astro 庄的老式公寓找到了一份工作。但得知自己必须全职住在那里后，他开始犹豫不决——直到他遇到了美丽迷人的房东米拉。两人开始一起工作，联系也越来越深。但米拉有一个秘密：她不是这个星球的人！

这是成长的故事——
宝石中最年少的磷叶石，仅有3.5的脆弱硬度，韧性也很弱，因而不适于战斗。此外，也没有对其他工作的适应性。被看做是只会出一张嘴，完完全全的吊车尾。这样的磷叶石，在即将满三百岁时终于被交付了第一件工作。那是，名为编纂博物志的工作。磷叶石对这不起眼的工作感到不满，但他在通过自己的双眼看见世界，经历各种各样事情的同时，接连被巨大的波澜吞没。之后，他终于获得了梦寐以求的“强大”，却并非是以自己所期望的形式——

这是友情的故事——
拥有比磷叶石更为特殊的体质的辰砂。仅仅是在那里，身体就会散播毒液的辰砂，为了不给周围人添麻烦，而在夜晚独自将自己关在室内，并封锁了心灵。某天，就在即将被月人掳走时被辰砂所救的磷叶石，和他做了“接下来就该我来救你了”的约定。磷叶石一边为编纂博物志而奔走，一边为了将辰砂带往光明的世界而寻找着适合他的工作。究竟磷叶石的想法能否传达给辰砂呢？两人的约定究竟会不会有实现的一天呢——？

这是战斗的故事——
从月球飞来的神秘敌人“月人”。他们将宝石作为装饰品，特别中意美丽的宝石，将宝石们一个接一个地掳走，真实身份不明。而且被掳走的宝石被加工成为武器，反过来加害于宝石。得到月人的不断改良，变得更加强力。面对接连现身的月人，二十八位宝石能否赢得胜利？他们的真正目的是什么？这场无止境的战斗，能否画下终止符？

Hace mucho tiempo, estalló una guerra entre Kanto y Kansai, dividiendo al mundo. Kansai se convirtió en un estado vasallo de Kanto y experimentó su propio desarrollo. Sin embargo, la política y el poder policial han decaído y el crimen prolifera. El criminal se llama "Akudama".