Xia Sasane (紗々音 シア, Sasane Shia), born on January 6, also known as Xia/Shia (シア, Shia), Xiwa/Shiwa, Ryugo, or by their circle name Hummel (ヒュンメル), is a Japanese artist and illustrator, who worked on the first 4 volumes for the Year 2 arc of Yōkoso Jitsuryoku Shijō Shugi no Kyōshitsu e manga series. Xia was born in Niigata and currently resides in Kanto.[1]