Where did the former god Qishan study?

The former god Qishan is studying in the basement. According to relevant data, in the game "Genshin Impact", the fortune teller chose Harut and Marut, Ah Jin chose a bricklayer to facilitate walking, and Qi Shan chose to study in the basement. Genshin Impact is an open-world adventure game produced and distributed by Shanghai Mihayou Network Technology Co., Ltd. The game takes place in a fantasy world named "Tivat", where those chosen by God will be given the "Eye of God" to guide the power of elements. Players will play a mysterious role called "Traveler", meet companions with different personalities and unique abilities in free travel, and together with them, defeat the strong enemy, find back the lost relatives, and gradually discover the truth of the "original god".