Ryuisaskilledyoungwriterwhohasagirlfriend,Pin,whohe'sdatedsincehighschool.Theyloveeachotherandplantomarry.ButperhapsbecauseofRyu'sfate,helosesherforeverinacaraccident.　　Ryublameshimself.Hewithdrawsandstartsleaningonalcohol.WiththearrivalofArm,thegrandsonoftheownerofthecompanywhereRyuworks,andtheirgradualrelationship,Ryu'sworldbeginstobrightenagain.WhenRyufindsoutthathehascancerandmaynothavelongtolive,Armgoesallincaringforhimandthetwodecidetolivetogether.　　However,theworldisalwayscruel.WhenArmandRyulearnthetruthofsomethingthattearsthemapart,RyudisappearsfromArm'slife.ArmtrieseverymeanstofindRyuwithoutanyluck,untilfinally,Armgetsabox.Thisboxcontainsalltheanswers.