WARNING: The following contains spoilers for Chapter #62 of Boruto: Naruto Next Generations, “Run-In,” by Masashi Kishimoto, Mikio Ikemoto, Mari Morimoto and Snir Aharon, now available in English from Viz Media.
One of the most shocking and powerful additions to the Boruto cast has been the cyborg Eida. Code recruited her from Boro's lair to aid the war on Konoha after Isshiki's death. Eida was said to be decommissioned, but Boro kept her alive as she was even stronger than Isshiki and Code. This is due to her god's eye that allows her to spy on anyone, anywhere, and see anything in history up until the moment she was made. However, while much has been kept secret on Eida's past, it may well be the case that she's Amado's daughter.
When Eida and Code first met in Boruto, she told him Amado created her and that she had a hatred for him. Ironically, when Amado spoke to Konoha's ninja council upon defecting from Kara, he talked about the daughter he lost -- and the manga cut to Eida. Now, if you're familiar with this series, it doesn't do subtle, as seen with its clear hints that Koji Kashin was a Jiraiya clone.
Eida was pensive as Amado spoke about his loss (albeit briefly), which was later juxtaposed to Eida stating how, apart from her little brother Daemon, she doesn't believe in family. Now, it could be Eida is keeping it hush that she was made from the essence of Amado's daughter, with maybe her brain being programmed to go into this bot's body.
Amado, after all, has had a warped obsession with immortality, ergo why he signed up with Isshiki. Thus, it could be that his daughter was sick and he felt Isshiki would save her. But then Amado, realizing she'd be weaponized instead -- and Isshiki seeing she might be a threat to him -- agreed she needed to be destroyed.
This betrayal could be why Eida is so bitter, knowing that once someone found her in Boro's sinister storage, she'd get a shot at revenge. It does make sense as Isshiki's tech has allowed him to live in Jigen's body for centuries, while preserving hosts like Kawaki and imperfect vessels like Code.
What's also telling is that Eida's mind-control and ability to make people fall in love with her can't work on Kawaki because of a failsafe Isshiki put in. She can't sync up with alien DNA, so it feels like a protective barrier Ishhiki and Amado would have worked out to keep Eida from harming the boss.
After all, Isshiki may have been worried Amado would use his kin to backstab the alien general and possibly repurpose Kara -- which, ironically, he has done. Future chapters of Boruto may reveal it for certain, but the fact Eida remains fixated on Amado and wants Kawaki says a lot. She naturally wants that sense of love back, and to remove the old shards from a broken life that may well have to do with bad parenting. With Kawaki also enduring bad parenting from Isshiki, this would make sense -- Eida has hinted she has a trump card that could convince him they're soulmates.
