Fall 2018

Berlatarkan kota Nagasaki, beberapa orang yang mempunyai kemampuan sihir, walaupun hanya ada sedikit. Hitomi Tsukishiro adalah gadis berusia 17 tahun keturunan dari keluarga penyihir. Kohaku, penyihir hebat yang bimbang tentang masa depan cucunya, memutuskan untuk menghantar Hitomi ke masa lalu, 2018 dan bertukar tempat dengannya ketika dia berumur 17 tahun.

Hari-hari bahagia seorang pelajar sekolah menengah dengan teman wanitanya terganggu apabila cinta pertamanya kembali dalam dua bentuk.

Thirty-seven-year-old Satoru Mikami is a typical corporate worker, who is perfectly content with his monotonous lifestyle in Tokyo, other than failing to nail down a girlfriend even once throughout his life. In the midst of a casual encounter with his colleague, he falls victim to a random assailant on the streets and is stabbed. However, while succumbing to his injuries, a peculiar voice echoes in his mind, and recites a bunch of commands which the dying man cannot make sense of.

When Satoru regains consciousness, he discovers that he has reincarnated as a goop of slime in an unfamiliar realm. In doing so, he acquires newfound skills—notably, the power to devour anything and mimic its appearance and abilities. He then stumbles upon the sealed Catastrophe-level monster "Storm Dragon" Veldora who had been sealed away for the past 300 years for devastating a town to ashes. Sympathetic to his predicament, Satoru befriends him, promising to assist in destroying the seal. In return, Veldora bestows upon him the name Rimuru Tempest to grant him divine protection.

Now, liberated from the mundanities of his past life, Rimuru embarks on a fresh journey with a distinct goal in mind. As he grows accustomed to his new physique, his gooey antics ripple throughout the world, gradually altering his fate.

Selepas tamatnya Operasi Pemusnahan Keluarga Tsukiyama, ahli-ahli Commission Counter Ghouls (CCG) telah berkembang pesat dan berkuasa terus mengejar matlamat mereka untuk menghapuskan setiap ghoul di Jepun. Setelah meletakan jawatan daripada Skuad Quinx, Haise Sasaki yang kini kelihatan tidak berperasaan mula mengambil lebih banyak tugas daripada CCG tanpa mengambil mengira tahap kesukarannya. Walaupun ekspresi kosongnya begitu, ingatan Ken Kaneki muncul semula di Haise, meninggalkannya dalam keadaan konflik dalaman. Sementara itu, tingkah laku barunya yang berhati dingin itu memberi kesan kepada orang di sekelilingnya. Skuad Quinx dibiarkan berantakan, terpaksa menghadapi kematian salah seorang ahli mereka tanpa sokongan bekas mentor mereka sendiri.