In her entire life, Moon Yeri was shielded by her parents. Going to an All-Girls Boarding School, having bodyguards following her in College Days and having only 0.1% contact with males. She dream to have her first romance, her first kiss and experiencing a blissful marriage life. To make her dream come true, her parents set up their daughter with an old friends son. Moon Yeri, the sweet and naive Wedding Planner and Byun Baekhyun, the crazy and independent High School Teacher. Two different people tied together in this arranged marriage. Positive + Negative = ?   Characters : Moon Yeri   Byun Baekhyun       Author Note :My second story in this account.I hope you enjoy it.I got the idea while listening to this song, Please Be Careful With My Heart. My Filipino friends might know this song.Sung by Sarah Geronimo and Christian Bautista.Sung by Regine Velasquez and Jose Mari Chan.Sung by Jodi Sta Maria and Richard Yap.Theres a story with the title name, if Im not wrong its a Filipino story too. Its stars Richard Yap and Jodi Sta Maria? Im not that sure the female actress name and if Im not wrong, theres 3 seasons with more than 600 episode, right?Anyway, theres a story with this same Title name in AFF, its an EXO story but I cant remember whos the lead. I think its Sehun. But I can assure you its not like that story. This story is not like that story and if theres any similarities, I did not plag. your story.When I was listening to this story, the story line just flows in naturally. Thats all, COMMENT, SUBSCRIBE and UPVOTE.Check my first story too.http://www.asianfanfics.com/story/view/935145/his-masquerade-angst-romance-exo-exok-sehun-sehunandoc-originalchacater     Foreword Thank you,  and  and also  for the beautiful, creative and loveable posters and background. Click on the picture to go to their Shop. Thanks. please be careful with my heart by Starlight Poster. please be careful with my heart by My Graphics~~.