一天，609号房(fáng )东(📼)花花公(🐌)子(zǐ )Mum，看(😘)到一个(gè )小伙在他的床上，从他们第一(yī )次见面就上床那天后，神(📿)秘(mì )的事情不(bú )断发生。Mum总(🖲)是梦(mèng )见(jiàn )一个(👑)神(🎩)秘的事件(🎡)，半夜总会被奇怪的(de )梦(🚉)突(tū )然惊(🐖)醒。Mum试图(tú )通过和(hé )女(🙁)人上床来忘记和(hé )年轻(😱)男(nán )子的(🔊)“情感”。然而，这甚至(📯)让(ràng )他(tā )多想(😞)想他的(de )梦(💱)中情人。然后(🥎)，他(tā )把事件(📙)的点点滴滴(🙌)联系起来，提出了反(fǎn )向(xiàng )平行(háng )宇宙的理(🥫)论。最后，他在现实(😍)生活中(zhōng )遇到了Dew。虽然他们的第一次(🗳)见(🤘)面是(❕)Dew的最后一(👊)天，但(dàn )也是(shì )他们两个(🏻)互相帮助(zhù )改变未(wèi )来的(🌪)开始！Oneday,astrangemanissleepingonMum’sbed,aplayboyandtheownerofroom609.Theybothhavepassionatesexthefirsttimetheymeetandafterthat,mysteriousthingskeephapping.Mumalwaysdreamsofamysteriouseventandwakeupfrightenedinthemiddleofthenight.Mumtriestoforgetthe"feeling"withtheyoungmanbyhavingsexwithwomen.However,itevenmakeshimthinkofthemanofhisdreammore.Then,heconnectsthedotsoftheeventsandcomesupwiththetheoryofreverseparalleluniverse.Finally,hemeetsDewinreallife.ThoughtheirfirstmeetingisDew’slastday,butalsothebeginningthatbothofthemwillhelpeachothertochangethefuture!