The Lord Tensen Arc is the 2nd arc in Hell's Paradise: Jigokuraku, a manga by Yuji Kaku.

The Island Arc is the 1st arc in Hell's Paradise: Jigokuraku, a manga by Yūji Kaku.

This arc was the start of uncharted territory for me because I only read up to where the anime covered, which was up to the last arc.

The Death Painting Arc is the sixth arc in the Jujutsu Kaisen series by Gege Akutami.

The Kyoto Goodwill Event Arc is the fifth arc in the Jujutsu Kaisen series by Gege Akutami.

The Vs. Mahito Arc is the third arc in the shonen manga series Jujustsu Kaisen by Gege Akutami.

The Cursed Training Arc is the second arc in Jujutsu Kaisen, a shonen manga by Gege Akutami.

Vol.0 aside, this is the introduction to the world of Jujutsu Kaisen.