Relationship Principle summary: You are reading Relationship Principle manga, one of the most popular manga covering in Drama, Fantasy, Manhwa, Mature, Romance, Webtoons genres, written by at MangaBuddy, a top manga site to offering for free. Relationship Principle has 19 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 Relationship Principle to your bookmark. Read manhwa Relationship PrincipleWhile helping a friend confess, Na-yoon unexpectedly receives a confession from the popular Do Seol-woo! Though momentarily shaken by Seol-woo's unexpected confession, Na-yoon believes that love is still a luxury she can't afford and rejects him. However, Seol-woo isn't ready to give up so easily and asks, "Can't we at least be friends?"