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