MC's story is similar to the Princess Anisphia from The Magical Revolution of the Reincarnated Princess and the Genius Young Lady, both born in world of magic, in family that should have magic, yet have no magic themselves, but love magic so much they study about magic to the point of making...
....because how the scene is, Sensei, and Student, on a roof, saying lovely stuff.... Now I hear Midnight Trip + see Blue Archive Hibiki L2D in my head.
Tho she still got a lil bit of minor technically misunderstanding that Kinako always doing this because she doesn't want to stand out... well she really doesn't want that, but initially, it's all because she's dumb a--, now knowing that she's rank 1, that's now the case.
Tho poor "big brother"...
MC: No matter what I can't let her know I am with the "Bad Guy", she gonna kill me and hate me.
Girl: Ah he's the big brother, and he defends for me, ITADAKIMASU
Only know about this manga recently and finished it quickly
From what I understand.
Alex's reincarnation is "since birth" but her old memory only came out at start of manga.
Lucia however is the case of Another Person's soul possessed the Original's, similar to "The One within villainess"...
"So what's your plan to deal with Supernatural Organization? Super Weapon? Super Power Force? or-"
"B O M B"
Joke aside, I doubt that's all the plan is, either bomb + other stuffs, bomb at some specific spot for specific grey shenanigan, or bomb as decoy.
Last Chapter, I expect the backfire on the "Step-Bit-" to be more direct. But nope, the backfire is probably even worse/funnier, because she basically got used as indirect tool to teach low-rank Nobles, like she got treated as "You are no threat, but you can be a lil funny clown to be used by us...
I see the evil priest react that way because he was expecting MC (Momain Character) to either be angry, or disgust at priest's action and 0 remorse, only to find her reaction to be sorrowful NOT because priest's 0 remorse, but that "if you have someone good guiding you in your life, maybe you...