In a research facility hidden away on a remote island, genius programmer Shiki Magata has lived as a recluse for years. She rarely sees guests, but associate professor Souhei Saikawa and university student Moe Nishinosono still seek her out. However, their meeting is cut short when they are caught up in a locked-room murder mystery. Everything is not as it seems, and many secrets are hidden. Within an isolated facility, a seemingly impossible and gruesome crime takes place, and Saikawa and Moe must unravel the truth behind the murder and Magata's shrouded past. [Written by MAL Rewrite]

Surrounded by a forest and a gated entrance, the Grace Field House is inhabited by orphans happily living together as one big family, looked after by their "Mama," Isabella. Although they are required to take tests daily, the children are free to spend their time as they see fit, usually playing outside, as long as they do not venture too far from the orphanage—a rule they are expected to follow no matter what. However, all good times must come to an end, as every few months, a child is adopted and sent to live with their new family, never to be heard from again. However, the three oldest siblings have their suspicions about what is actually happening at the orphanage, and they are about to discover the cruel fate that awaits the children living at Grace Field, including the twisted nature of their beloved Mama. [Written by MAL Rewrite]

Emma, Ray, and the rest of the older children have escaped the confines of the Grace Field House. However, with relentless demons set on capturing them, their arduous battle for freedom has only just begun. Despite venturing into the treacherous wilderness, the children remain optimistic due to their possession of books written by William Minerva. Coded within his books are messages detailing the world outside the farm—information that can help them survive with the limited resources they have. But when their pursuers draw near, the children soon encounter their most dreadful situation yet. In Yakusoku no Neverland 2nd Season, the children struggle to survive in the strange ruthless world, striving to find a sanctuary they can truly call home. [Written by MAL Rewrite]

High school student Takeru Takemoto works part time as a (motor)bike courier. During one of his deliveries, he saw a mysterious light passing him and fell into a forest. What he had found was a beautiful girl coming out from a glowing cocoon, calling herself "Hikari." While Takeru was quite embarrassed because of Hikari's nudity, a strange monster suddenly showed up and immediately attacked the two. Both Takeru and Hikari demonstrated the power of their other selves before Takeru had a clue of what's going on. (Source: ANN)