人人街有家没有招牌的租书店，陆续聚集了四位鲁蛇。鲁蛇首脑张亮，看似开朗热心助人，其实内心破了个洞，不让任何人察觉他的悲伤。 鲁蛇二号周广侠，租书店老板，没有经营生意的头脑，却拥有精湛厨艺。外表率性不修边幅，有段不愿谈论的过去。鲁蛇三号康乐佑，人生最大的梦想是嫁给有钱人。她嘴硬心软，老是欺负张亮，与张亮是对欢喜冤家。鲁蛇四号丁邵恩，张亮的童年好友，聪明自负的富二代。却有人际相处的障碍，并背负着继承家业的沉重期待。 四人因缘际会下挂上『人际关系事务所』的招牌，与被戏称「三宅一生」的租书店常客，动漫宅阿元、腐女宅端端、3C宅三西，在让人哭笑不得的情境里，陆续解决他人的人际问题，也找到自己的人际相处之道。

在「人人街」上有家沒有招牌的租書店，陸續聚集了四位「魯蛇」。

四位魯蛇分別是─張亮（曹佑寧飾）、康樂佑（郭書瑤飾）、丁邵恩（王柏傑飾）及周廣俠（馬志翔飾），而他們四人在某個因緣際會下，於租書店裡掛上了「人際關係事務所」的招牌，專門幫助他人解決人際關係的問題，也在之中找到屬於自己的人際相處之道。

Clumsy Kang Le-yo (Guo Shu Yao, Office Girls) wants to be rich. She crashes funerals to trap rich mourners, picks up cash she finds on the street, and misses no chance to make money the easy way. She is also indebted to a loan shark, and someone special is coming to collect her dues. Bumbling debt collector Chang Liang (Tsao Yu Ning) has terrible luck. His boss borrowed money and ran away, and now Chang Liang has to pay off the loan shark. The problem is, he is just too nice to shake people down. When he has to go collect money from Kang Le-yo, Chang Liang ends up falling for her instead. Ding Shao-en (Edison Wang) is Chang Liang’s best friend, but not one without grievances. He hates Chang Liang's lack of boundaries. Not only does Chang Liang refuse to stop calling him Ding-ding, but now, Ding Shao-en is caught in the middle of an annoying mess between his buddy and the money-hungry girl he likes. Chang Liang and Ding Shao-en know they need money to solve their problems. When they realize Chang Liang is really good at dealing with people, they open the Interpersonal Relationship Office. Together, they help people solve their problems with others. But first, they need to focus on solving their own.

도서대여점에 대인관계 장애를 가진 사람 4명이 모여 다른 사람의 대인관계 문제를 해결하며 벌어지는 이야기를 담은 드라마

Desde a sua infância em um orfanato, sempre houve algo sobre Zhang Liang que faz quase qualquer um disposto a se abrir com ele. Um dia, ele encontrou uma livraria sem nome, onde começou a ganhar dinheiro resolvendo os conflitos de relacionamento de outras pessoas. Nesta livraria ele se apaixona, se reencontra com seu melhor amigo e, no curso de resolver os problemas de outras pessoas, até encontra sua mãe perdida. À medida que o amor, a amizade e a afinidade convergem e começam a colidir em sua vida, ele deve agora descobrir como resolver os problemas de relacionamento emergentes em sua própria vida.

จางเลี่ยง หนุ่มที่เติบมาในสถานเลี้ยงเด็กกำพร้า วันหนึ่งเจ้านายของเขาหายตัวไป จางเลี่ยงจึงเริ่มต้นชีวิตใหม่ ด้วยการก่อตั้งบริษัทมิตรไม่จำกัด เพื่อรับปรึกษาสารพัดปัญหาเรื่องลำบากใจ การทำงานช่วยเหลือผู้คนทำให้จางเลี่ยงได้พบกับมิตรภาพ และความรักที่เคยขาดหายไป