What is the drama of Yi Su from one generation to five generations? Briefly summarized as follows.

Yisu 1: Ado, a red-haired young warrior obsessed with the ancient legend of Yisu, crossed the sea blocked by the enchantment to the former site of Yisu-Estella, and met Fina, a woman with amnesia, and Leia, a minstrel. Under the guidance of the soothsayer Sarah, Adao began to collect six legendary "Izu Books" and embarked on an adventure in Astaria, where Warcraft frequently appeared ... Izu II: Adao, who collected six "Izu Books", was sent to the land of ancient Izu by powerful forces. After being rescued by Lilia, a girl from Guangming Village, Adao launched a new round of adventure in the air mainland. Fina and Leia are actually the twin goddesses who created Izu! The history of the ancient country of Izu, the Six Gods and the "Black Pearl" gradually surfaced ... Izu 3-Adventurer from Izu: The story happened two years after Adao ended his adventure in Astaria. A Dao, who is already a professional adventurer, and his partner Duo Qi came to Fergana, the hometown of Duo Qi, to investigate a series of unexplained disasters. In contact with the girl Elena, Adao discovers that Elena's brother Joan actually intends to awaken the ancient demon king Gabarain for revenge ... Izu 4- The Mask of the Sun: Continue to tell the story of Adao's adventure when he left Astaria and came to Celseta, so as to uncover the mystery of the prosperity brought by the mask of the sun to the local area. Izu 5- Lost Capital of Sand: After three years of adventure in Astaria, Adao came to the mysterious mainland of floca where the "fantasy capital" was hidden, and launched another round of adventures to uncover the mystery of the mysterious ancient capital that disappeared in the desert ... Izu 6- Nabistine's Ark: 23-year-old Adao challenged the Canaan Vortex in the marginal waters of western Asia, Allen, and fled to an island surrounded by the vortex after being attacked by Romon's fleet. I met the descendants of the elves ... The oath of Issu 7- Fergana: Atru and Doki returned to Doki's hometown-Issu 8- Origin: the legendary country ruled by the twin goddess and the six gods and prospered by the power of the black pearl -700 years ago, the ancient kingdom of Issu was ravaged by a sudden monster army and reached the Sallmen Temple at the core of the kingdom, so the goddess and the six gods relied on the black truth. At this critical moment, the twin goddess symbolizing Isu was mysterious.