Gyeyak Johange Yuuihaseyo!

Su-Jong, struggling to raise his daughter alone while facing financial hardship, is offered a part-time job as a test subject for research conducted by his university junior, Woo-Min. Lured by the high compensation, Su-Jong signs the contract without fully understanding the nature of the research. Only later does he realize his body has been completely altered...


“You look better on the receiving end, senior.”


Shame and pleasure. Where can one escape from the end of this inescapable contract...?!

(Source: MrBlue, translated)


Note: Includes seven extra chapters.