カタワレ時、二人はついに出逢う──…。
三葉の口嚼み酒を飲み、ついに三葉と入れ替わることができた瀧。ティアマト彗星から三葉たちを救うため、テッシー・サヤちんと共に避難計画を実行します。「糸守を救おう、俺たちで！」

The third installment of the manga adaptation of the film that took the world by storm!
To save Mitsuha and all of Itomori from the comet Tiamat, Taki joins up with Saya-chin and Tesshi to evacuate the town. But Mitsuha's father is stubborn and refuses to listen...