What does it mean to move through the world while feeling quietly out of place within it? Schoolgirl (女生徒) by Osamu Dazai is a subtle, piercing portrait of a single day in the life of a teenage girl, told entirely through her private thoughts. From morning to night, the narrator observes her family, her classmates, her teachers, and the passing city—recording small irritations, fleeting kindnesses, sudden fears, and moments of unexpected tenderness with disarming honesty. First published in 1939, Schoolgirl is one of Dazai’s most intimate and accessible works. Written in the tradition of Japanese confessional fiction, it captures the restless movement of a young mind and the quiet pressures of everyday life with precision and restraint. Beneath its simple surface lies a careful study of self-consciousness, social performance, and the fragile boundary between sincerity and pretense. This edition is a new English translation by Nicholas Ashcroft, produced directly from the original Japanese text. The translation emphasizes fidelity to tone and structure, preserving the work’s flowing interior monologue and emotional nuance without modernization or stylistic embellishment. Schoolgirl is an essential work of modern Japanese literature and a revealing companion to Dazai’s better-known novels such as No Longer Human and The Setting Sun . It will appeal to readers of literary fiction, classic novels, and psychologically driven narratives concerned with identity, observation, and the inner life.