胡八一等人受陈教授委托，前往南海珊瑚庙岛，雇阮黑师徒乘三叉戟号赴珊瑚螺旋寻秦王照骨镜。历险后坠入归墟，于沉船内得古镜并知阮黑乃多玲仇人。脱险后休整时，突现神秘人持棍逼近守夜的明叔。
故事背景设在明治64年，并由德川庆喜掌握权力的另一个日本。国家靠能量源「龙脉」，形成江户和科学混合的独特发展。但繁华背后，反体制派组织「蛇」正酝酿革命之火。德川政府委任暗组织「鵺」将其驱除。女主角-雪村笑羽在幼时被灭门，于是她作为「鵺」的处刑人，为报仇而持续寻找蛇野目……
漫画《中之人基因组【实况中】》宣布了动画化企划进行中的消息，引起轰动的原因不明的连续少年少女失踪事件。《中之人基因组》，在游戏实况者之间成为话题的神秘免费游戏。通称，失踪游戏。据称，在即将通关之际就消失的玩家源源不断。失踪的游戏实况者们被人为地与外界隔离，集合到某座岛上。在那里，他们所接受的命令，是通过必须在现实中通关的各种游戏，来达成一亿的播放数。8名人气实况者所带来的，以能否回归为赌注的真实游戏《中之人基因组》的实况开始了——
Not only is Marinette Ladybug, the superheroine that protects Paris from the attack of villains, but she’s also now the guardian of the Miraculous. This means that not only does she need to keep her identity hidden, but also the existence of these turbulent, magical creatures, the Kwamis! Marinette has a lot of pressure, not to mention her school and love life! Now she has less time and opportunities to tell Adrien her feelings... Marinette now has to redouble efforts to protect her secrets and Ladybug will have to become stronger to face an indomitable adversary: Shadow Moth, who can now fuse the Butterfly and Peacock Miraculous! Thankfully, Ladybug can count on Cat Noir and their new superhero allies!
