Ling Sui de Xingguang

"Amore~4,2 anni luce"is a short modern emotional e-novel about a boy who grew up as a loner, "Yu Qing", who was adopted by his doctor "sister" in an orphanage, and the series of experiences he had with her in life and growing up. Is the love between his sister and him a family love? Or was it a love that ultimately failed to form?