一(🌠)天，609号(hào )房东(dōng )花花公子Mum，看到一个小伙(🕰)在他的(de )床上，从(🎹)他(tā )(🆖)们第一(yī )次见面就上床那天后，神秘的(de )(👋)事情不断发生(shēng )。Mum总是梦(🐿)见(🕔)一(🔸)个神(🎩)秘(mì )(🤷)的事(shì )件，半夜(👁)总(zǒng )会(huì )被奇(🔲)怪的(🛹)梦突然(rán )惊醒。Mum试图通过和女(🙁)人(rén )上(🚸)床来(🚑)忘记和年(🤯)轻男(nán )(🐖)子的(de )“情感”。然而，这甚(shèn )至(zhì )让他(🛑)多(duō )想(xiǎng )想他的梦中情(🌑)人。然后，他把事件(📙)的(🔝)点点滴滴联系(xì )起来(lái )，提出(🙀)了反向平行宇宙的(de )理论。最后，他在现实生(shēng )活中遇(yù )到了Dew。虽然他们的第一次见面是Dew的(🏉)最(zuì )(🥊)后一天，但也是他们两个互相帮助(zhù )改(gǎi )变未(🤷)来的开始！Oneday,astrangemanissleepingonMum’(🏴)sbed,aplayboyandtheownerofroom609.Theybothhavepassionatesexthefirsttimetheymeetandafterthat,mysteriousthingskeephapping.Mumalwaysdreamsofamysteriouseventandwakeupfrightenedinthemiddleofthenight.Mumtriestoforgetthe"feeling"withtheyoungmanbyhavingsexwithwomen.However,itevenmakeshimthinkofthemanofhisdreammore.Then,heconnectsthedotsoftheeventsandcomesupwiththetheoryofreverseparalleluniverse.Finally,hemeetsDewinreallife.ThoughtheirfirstmeetingisDew’slastday,butalsothebeginningthatbothofthemwillhelpeachothertochangethefuture!