I'm looking for a manga wherein the heroine is talented in magic but chose to go to a military school her grandma and mother went to and they have this technique thats passed down to the females of the family. I think she avoided magic school to avoid the main characters I think? And I hope I'm not mixing another manga in this one, but I remember a scene wherein she was finally permitted to register at a guild that's supported? near? supervised? by her family (her family is very rich, think count-duke rich) and her abilities were tested by the few people who were there and the guild head said " if the * black or black haired goddess * comes in, it's an auto pass" or somewhere along those lines, cause her mother was the same. And! (again I hope I'm not mixing another manga into this) at the military school she was one of the two females and she was quite close with the soldiers to the point that they drank?? together, got drunk, and said some wise stuff under the moonlight which made supporting characs suspicious of her real age or sumthn.

I hope this wasn't too confusing! Thank you in advance!