In the year 2022, a massive online role-playing game called Sword Art Online (SAO) is launched. With the aid of "NerveGear" technology, players can control their avatars within the game using nothing but their own thoughts. Kazuto Kirigaya is among the lucky few who get their hands on the first shipment. He logs in to find himself, with ten-thousand others, in the scenic and elaborate world of Aincrad. However, in a cruel turn of events, the players soon realize they cannot log out; the game's creator has trapped them in his new world until they complete all one hundred levels of the game. In order to escape Aincrad, Kirito will now have to interact and cooperate with his fellow players. Some are allies, while others are foes. Sword Art Online is not all fun and games: if they die in Aincrad, they die in real life. Kirito must adapt to his new reality, fight for his survival, and hopefully break free from his virtual hell.

樱花飞舞的四月，全新的高中二年级，新的班级…… 眼神凶恶，看起来像不良少年的高须龙儿，事实上连跟别人吵架都没有吵过，是个很普通的少年。如今，他正要升上高中二年级，并幸运地跟暗恋一年的栉枝实乃梨和高一时的好友北村祐作同班。另外，高须又为了怎么样才能在新的同学中解除自己是不良少年的误解而烦恼不已，却意外地因为与被称为“掌中老虎”的逢坂大河邂逅而解开大家对他的误解。但同时知道了逢坂大河不予人知的秘密——大河暗恋着龙儿的友人北村。 有一天放学后，大河正要将情书放进北村的书包时，龙儿正好走进教室里。慌忙间，大河将情书误放进龙儿的书包中，于是她决定晚上带着木刀潜入龙儿家中将情书抢回来，没想到放进龙儿书包内的只有信封。以那一夜为契机，大河和龙儿互相结成了友情与支援对方爱情的共同战线。 由于大河一人独居，且完全不会作家事及料理，因此龙儿与大河便常常一起在龙儿家同龙儿母亲吃晚餐、一起上学、一起去超市买料理材料。因为这件事情，他们两人被实乃梨与北村误解正在交往了……

2010 Japanese anime film

故事发生在私立希望之峰学园中，苛刻的入学条件和优厚的毕业待遇让这所历史悠久的学园笼罩着一股贵族和精英的气氛，只有超高校级的学生才有资格进入其中学习。今年，苗木诚（绪方惠美 配音）以“超高校级幸运”为由收到了来自学园的录取通知，奇怪的是，他平凡的生活中并没有遇到过什么幸运的事情，如果硬要说有的话，那就是此次的录取了。 这一届，包括苗木诚在内共有15名新生，均为各个领域内的尖端人士，而在开学典礼上，黑白熊（大山羡代 配音）的出现却让他们落入了永恒的炼狱。闭锁的出口，昏暗的空间，残酷的脱出规则，激烈的学级审判，只有双手沾满鲜血的人才能够成为最后的胜者重获自由。这一回，被称为超高校级幸运的苗木诚能够继续他的幸运吗？