Irmão Lorenzo/Provérbio is a Franciscan friar living at the monastery that shelters the orphaned protagonist. He belongs to the collective group of friars responsible for raising, educating, and protecting the young boy within this monastic setting. Alongside his brothers, he shows deep affection for the child, though he occasionally encounters difficulties with the boy's unconventional questions and energetic actions stemming from his keen curiosity.

This friar takes part in the protagonist's daily life and supervision, contributing to the educational and protective efforts of the monastic community. His interactions occur primarily within the context of the boy's adventures, discoveries, and relationships with the surrounding natural world and animals. His presence is integral to the structured, caring environment the monastery provides, which forms the central setting for the protagonist's experiences.

The character remains defined solely by his functional role within the monastic community. Details regarding his individual backstory, personal development across narrative arcs, distinct characteristics, origins, specific duties, unique traits, or evolution throughout the series are undefined. Similarly, his portrayal in movies, OVAs, or spin-off media remains undocumented.