I was reborn as the rival character in a BL game, so I want to watch over them with a smirk～But the world had other plans～

Though it sounds impressive to be called a descendant of the samurai class, the reality is that I'm so poor I live like a commoner... or rather, even worse than that. No one seems likely to ask for my hand in marriage either. With my younger siblings to care for, I have no idea how we're supposed to survive... living hand to mouth every single day. It was then that I received an acceptance letter as a female scholarship student to an all-boys school. It came with excellent conditions—full tuition waiver, and if I maintained excellent grades, I would even receive job placement assistance for rare positions for women, such as becoming a teacher. I accepted, bearing the hopes of my family on my shoulders, and stepped through the school gates. And then I remembered. This is the world of a samurai code-themed BL game set around the Meiji Restoration!!