Everyone has a secret—but some are harder to hide than others.

From Yoru Sumino comes a poignant story about hidden truths and the quiet burdens people carry. A group of high school students each harbor a deeply personal secret—things they cannot share, even with those closest to them. As their lives intertwine, these concealed truths begin to shape their relationships in unexpected ways. Gentle, emotional, and introspective, this complete collection explores trust, vulnerability, and the courage it takes to be truly seen.