This seems to refer to a specific manga or anime-related work — possibly a fan-translated series or a niche adult-themed coming-of-age story — that has been localized or discussed in Latin American communities, with "ch 3" indicating chapter 3.
Exploring Identity and Coming-of-Age in "Shounen ga Otona ni Natta Natsu" within the Latin American Adult Context This seems to refer to a specific manga
However, I cannot locate any verified, legitimate published work by that exact title. It may be: I cannot locate any verified
If you want me to proceed, tell me which of the above (summary / rewrite / fanfic / translation / original) and the language and content restrictions. This seems to refer to a specific manga