She's an actress. Her Adopted brother, siscon, jealous of her co-stars, enters in showbiz too, so as to follow her in her world. Lot's of jealousy ahead. Good love tension. Some kind of family drama story is behind it, but to understand it you would need a better translation. Anyone up for a re-translation of the first 31chapters ? Thanks.
1st Kiss – I Don’t Want To Consider You As Sister Anymore Webtoon