Reading the white space of life: 　
A journey through the unwritten memories of youth.

Triggered by the small occurrences of daily life, Yuki Onomura, now in her first year as a professional, finds herself reopening the “diary” of her university days spent with four close friends. This evocative ensemble drama unfolds across two timelines: the present, depicting their struggles as new working adults, and the past, retrospectively focusing on their shared youth.

The story portrays the raw, authentic struggles of young professionals who feel an invisible distance between themselves and others, grappling with anxieties they cannot put into words. As they reunite after graduation and navigate the “white space” of their youth—those moments that once felt empty or incomplete—their bond poignantly transforms into a profound “sanctuary of the heart.” By gradually learning to accept one another’s vulnerabilities, they rediscover their shared history not as mere memory, but as a vital emotional anchor that grounds them in the uncertainty of adulthood.