Guys after reading two volumes of the novel I gotta be brutaly honest: this Anoseka is far superior in every aspect to Mobuseka.
Marie is 100x better heroine than Angie and Olivia (and this is coming from an Angie super simp). She is indeed a real protagonist in my eyes. Hell, even Leon is way better character than Mobuseka Leon and... Luxion is still thr king he always was...
Anyway I know most of us love Mobuseka or at least the waifus but I have to admit they feel like harem members only after each of their arcs and harem being harem means romance is mediocre at best... but not here. Sure they WERE siblings but they are not siblings here and they are even forgetting their memories of their past lives. Marie and Leon are so good together you come to believe this can easily be the real secret route.
Plus Marie is so relatable, human, fun and damn cute you feel like wanting to protect her (don't misunderstand, she is a tough little beast but yeah she's adorable).
Anyway I hope they keep updating this cause it sure came to top the original plot in my opinion!