Ookikute Kyuukutsu na Kono Sekai de.

The year was 1921, the 10th year of the Taisho Era, a brief moment of peace between the world wars. Nanasei, a boy living in Semba, Osaka, has been unable to express his emotions since the death of his parents. Then one day, a letter arrives from Italy... A "Pure-hearted Taisho Boy's Tale of Italy" by a Kansai author. (Source: Mag Kan, translated)