Yasuoisstayingathomewithhisfather,Tassuke,whoisjustlikehisuncle.However,Tase’sdaughter,Seiko,hasanoutspokenaffinityforYasuofromthefirstday.Seiko’saggressivebodyattackthatdidnotwinthelustYasuotoldherthatshewaslikehercousin’ssisterIcannotrefuseandstarttospendahotnight.