Moonlight Project: Ano Toki no Kanojo wo Torimodosu
Rikan, an IT worker, is in a tight spot when she's suddenly laid off and stuck with financial debt, She asks her childhood friend, Shion, a popular novelist, for help. The sharp-tongued Shion agrees to lend her money, but the condition of the loan is for Rikan to become her live-in assistant, The two were close childhood friends, but as they grew older, they were molded by painful experiences and are no longer able to speak openly with each other like they once did. Shion, who has a twisted personality, and Rikan, who hides her scarred wrist... Can they overcome their past trauma and bring back the White Moonlight?
(Source: Kadokawa, translated)