Suijin is a historical novel set around the Chikugo River, portraying people who live with water and their longing for flood control. Across two volumes, it unfolds the threat of nature, village solidarity, and the struggle to protect life.

The prayers of people who fear water and live by it move the current of history.

Koi no Hotaru is a novel that illuminates the life of Tomie Yamazaki, who spent Osamu Dazai's final days with him. Through a woman's perspective often hidden in the shadow of a famous writer, it portrays love, devotion, and the atmosphere of postwar Japan.

The novel portrays the life of the woman beside Dazai at the end, within love and history.