Demiurge

 (デミウルゴス, Demiurugosu) is the god of creation and the one who controls the world where Mukoda was summoned.

History
One day, he finds six of the other gods sitting in a huge table, awaiting for the tributes which Mukoda was about to send. At that moment, he came in contact with Mukoda and learned the gist of it, how the other gods started to receive tributes in exchange for blessings.

He confiscated all the offerings each gods and goddesses received from Mukoda and declared a quiet period for all of them to stay in their own palace without any offerings for a month. He then had a little talk with Mukoda and update the news of the other 3 heroes whom has been summoned alongside Mukoda.

During the small talk with Mukoda, he noticed Mukoda developed hatred toward peoples in relationship. With sympathize for him, he bestowed his minor blessing which grant a semi-immortality similar to the High-Elf and extended Mukoda's life span to around 1,500 years. The reason behind is, statically, even an unattractive person by this world's standard would surely find a lover within 1,500 years.

He is quite easy-going as to not demand any specific offerings and left it to Mukoda to decide. But he did tell him that he loves liqueur.

In many occasions, it implies that he has many secrets hiding and sometime drop a hint to Mukoda which led him to adventurers. When Mukoda tried to ask for the details each time he drops a hint, he will immediately cut the call off.

He was actually an acquaintance of the God of Earth and in connection, fond of liquor. It wasn't clear but Demiurge has a magic tool that allow one to transfer goods from Japan to gods realm and when asked about it, his excuse was that the item has a problem.