About My Junior Sister and That Pretty Boy

"Third-person narration, heroine's point of view"

Blurb:

My junior sister and I grew up together. I love her.

I've been waiting for her, waiting for her to grow up and marry me.

But during an assassination mission, my junior sister unexpectedly met a pretty boy.

She took such good care of that pretty boy, yet ignored me completely.

I was heartbroken and devastated, consumed with jealousy.

How could I just let this go?!

Theme: If you love someone, love them bravely.