An Si-eun

Shiune was a player of «ALfheim Online». She was the sub-leader of the «Sleeping Knights» guild. As she is an Undine Healer like Asuna, her role is of support to the other fighters.

Backgound
As with the other members of the Sleeping Knights, she was using the MediCuboid to improve her life quality since she was diagnosticated with acute lymphoblastic leukemia. She was treated with chemotherapy and got better, but after a year she was sick again. Because she wasn't compatible for a bone marrow transplant she was just treated as a terminally ill patient.

Mother's Rosario
She is with Yuuki and Asuna in an inn on floor 27 of Aincrad as member of the Sleeping Knights guild. She acts as a support player to her party during battles, not only healing, but casting buffs over them. With Asuna's help they manage to defeat the floor's boss. After the guild disbands, she's the only one who faces Asuna and asks her not to look for them. After Asuna meets Yuuki at the hospital, she returns, along the the other members to ALO and clear floors 28 and 29. During April 2026 her leukemia dissappears and she was discharged a week prior to Yuuki's funeral. After the funeral she talks to Asuna and explain's everything she passed.