You are reading Necessity of Relationship manga, one of the most popular manga covering in Webtoons, Yaoi, Adult, Mature, Smut genres, written by GAL-BI at MangaBuddy, a top manga site to offering for free. Necessity of Relationship has 3 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add Necessity of Relationship to your bookmark. Do-yoon, who dreams of living together with his childhood friend Lee Hwan, whom he has a crush on.But his mistake caused Lee Hwan's body to The soul of idol lon has taken hold!They say that a switched soul can only return after filling up its yang energy.