Placebo

Wooyeon and Woojin, who grew up as step brothers in a remarried family. After being hypnotized by his older brother as a way of relieving boredom, Woo-jin tames a rude coincidence as a good “brother” and begins to abuse it.

Placebo is a completed manhwa at 3 chapters. It is written and illustrated by Cuke Soap. Released in 2021, it has been published in Lezhin.