ミオの死の余波で、ワタルは次郎が彼をタイムドアに引きずり込むまで大河と対峙し、ワタルが父親に会ったら落ち着きを取り戻すことを望んでいる.しかし、ワタルが過去に戻ったとき、彼は自分の存在を消し、両親が集まるのを防ぐことでミオを救おうと必死になっています.親子関係を明かすことを余儀なくされたとき、音也はそれを信じることができませんが、2人がファンギレに襲われるまでゆっくりと近づき、父と息子が並んで戦うようになります.
In the aftermath of Mio’s death, Wataru confronts Taiga until Jiro drags him to the Time Door, hoping that Wataru will regain his composure if he meets his father. But when Wataru returns to the past, he is hellbent on saving Mio by erasing his own existence and keeping his parents from getting together. When he is forced to reveal his parentage, Otoya is unable to believe it, but he slowly comes around until the two are attacked by a Fangire, leading father and son to fight side by side.