Hedgehog AK

Occupation: Summoner / Apprentice Tailor Race: Ritualist

78 years old with 18 years of experience in "Elder Tale." In the real world, he is the president of a company that manufactures "Elder Tale" related merchandise.

Since becoming a tailor, he has been making goat slime plushies, but they have been harshly criticized by his companions as "like a cult worship" or "can only be seen as an idol of an evil god," and he himself has referred to them as idols of an evil god. He has made 50,000 goat slime plushies, and when contracting the guild house, he often makes bold and reckless decisions, such as signing and stamping the contract on behalf of his companions without consulting them, causing his companions to be anxious. Despite being the oldest member and sometimes showing calm judgment and compassion, his daily actions have led to a lack of trust from the guild members. In Replay Volume 3, he was consulted by Mr. Masuda, who was seriously troubled by the matter with Isaac mentioned later, but failed to make a temporary statement and ended up losing trust.

Goat Slime

A monster plushie conceived by AK. Commonly known as "Goat Sla." AK made 50,000 of them, resulting in a large stockpile in the warehouse of . Subsequently, various strange phenomena have been described in the replay text and annotations, such as "following you at night saying 'Buy me' 'Buy me'," "bleeding from the gums," "increasing by 1,000 without notice," and "screaming when set on fire." In Replay Volume 4, it served as both the model and fuel for the "Goat Slime Tank" developed by , and after the final battle, multiple individuals left in the Goat Sla Tank gained life and were released into the wild, creating a surreal phenomenon.

Initially, it was just a joke made by AK's player, Kugane Maruyama, but after AK made the first one in the replay, its presence increased, eventually appearing in the anime.