You Are At The Right Place ! First , We Need To Get Both Proper Definitions So We Can Compare & Contrast Between The Two . ^ω^

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• Yumeshipper : From The Japanese Word " Yume " meaning " Dream " Is A Person Who Engages In Selfshipping , Which Is The Act Of " Shipping " ( Imagining A Romantic OR Platonic Relationship Between ) Themselves , A Self-Insert Character OR An Original Character ( OC ) With A Fictional Character . The Term Is An Umbrella For Several Variations Including The Female " Yumejoshi " ( Dream Girl ) , The Male " Yumedanshi " ( Dream Boy ) , & The Neutral " Yumejin " OR " Yumehito " ( Dream Person ) Is Also Used .

• Riako / Gachikoi : Someone Who Has " Real Love " For Another Person , Often A Celebrity, Idol , & In This Case , Fictional Characters ! They Tend To Treat The Relationship As If It Were Real But In Reality It Is One-Sided Due To Personal Beliefs . Its Used To Express Deeply Genuine Feelings For Someone Who Is Not Physically Present . The Term Comes From The Japanese Phrase " Riaru Ni Koishiteru " ( リアルに恋してる ) Which Translates To " I Love You In Real Life " Gachikoi Is The Gender Neutral Version Of This Term , Which Is ( がちこい ) AKA. Serious + Love .

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So , To Compare , Riakos / Gachikois Take Their Relationships Very Seriously Compared To The Average Yumeshipper , But Still Acknowledges Its A One-Sided Connection .