How to get on the protagonist’s flower path RAW novel

I was reincarnated in a modern fantasy novel for men.
I was expecting a life of sucking honey as a reincarnation perk,
but what I was given was a hardcore life with an orphanage king sister lol and a younger brother to feed!
In the midst of the ensuing financial crisis, I finally made up my mind.
Hop on the “Protagonist Bus”!
In other words, you become a member of the male protagonist’s harem.
Heroine? I’ll do it for you. If you can make money doing that!
My goal is to become a common sub-heroine 1 and eat rice cakes, and when I earn enough money,
I naturally leave.

By the way…

[The character ‘Kang Na-hyun’ appears in < Academy’s F-Class Commander >.] [Updated readers’ reactions!]
– What is it? Is she a heroine?
-The academy is a
harem after all. Hits!

What else is this?

***

… Clearly, my initial goal was to be a sub-heroine 1 with no weight.

– Isn’t Jeong-sil Kang Na-hyun of course?

I didn’t know at the time that Kang Na-hyun was a true person, and that life in academia doesn’t

always go according to plan.