It’s fitting that the seventh episode of Elfen Lied is all about #7, or Nana, back from the (near-)dead. Shichi is another way to say seven in Japanese, but because shi means “death”, nana is more commonly used. In western culture seven is considered lucky, yet Nana is unfortunate enough to immediately cross paths with Bando on the beach.
He has a few new anti-Diclonius tactics—social distancing(!) and harder bullets—but his new arm crumbles from his gun’s recoil, and their duel ends in a stalemate. When he learns they both consider Lucy an enemy, he tries to give her his number (the same one he wrote for Mayu) but she doesn’t know what a “number” is, so he gives up.
Mayu doesn’t know much of anything about the outside world, but she is hungry. She watches people exchange coins for crepes, but doesn’t realize the stacks of paper in her bag are hundreds of thousands of yen. It’s another scene that comments on the dearth of general kindness and empathy in this society, as the crepe guy tells her to buzz off and the other women comment on her clothes. No one asks if she’s okay.
Even if Dicloniï didn’t possess the potential for lethal mayhem, they’d be ostracized simply for looking different. Nana understands this is not her world and never will be, so she considers destroying it and making a new one where she does belong. But for the time being, that’s beyond her abilities, and she could settle for a meal.
Nana isn’t done with chance encounters, as #2 involves Wanta leading Mayu to the spot where Nana and Nyu fought, and finding Nana there, warming herself by a fire made from the money. Most people in this town might be assholes, but Mayu certainly isn’t, and has very recently been in Nana’s shoes: nowhere to go and unsure what to do.
Mayu notes that at least someone (Nana’s “dad”) cared enough about her. They agree to become friends, and Mayu notes how Nana and Nyu both have horns. That makes it the second episode in a row where Mayu has told someone something she couldn’t that puts Kouta, and Yuka in danger…not to mention herself.
Sure enough Mayu invites Nana to her house, where Nana has her third change encounter of the day: one with her self-appointed nemesis. Notably, she cannot sense Nyu’s presence the way she can sense Lucy’s; her personality shift to Nyu apparently has the effect of nullifying her Diclonius signature.
The second she spots Nyu, Nana goes into attack mode, shocking Kouta and Mayu. Will Mayu’s hastily forged friendship with Nana be enough to calm her? Will Lucy wake up and just make things worse? Whatever the case, it looks like it’s going to be another long night for everyone.