Not many researchers or experts have studied how organizational culture, the quality of teacher readiness, and effective schools are dynamic, especially in one-roof schools in suburban areas whose geographical conditions are near the coast and mountains. This research aims to analyze the relationship between OCO and TRQ with SDE. This research is in 9 one-roof schools. This study is using the quantitative approach, non-experimental design. The respondent of this study consist of 87 respondents (teachers and principals). Data collection techniques by researchers were carried out using a questionnaire in the Google form through multiple choice. Descriptive analysis using IBM SPSS22 and inferential statistics using SmartPLS3. The result shows (1) the Javanese cultural factor of remote communities, "ewuh pakewuh," (2) instructive guidance from the Regional Coordinator of the Education Office, (3) the construction of tourist sites in the form of roads, (4) availability internet in remote areas of southern Malang. The 24.7% variable that has yet to be studied is most likely caused by factors of instructional leadership and shared leadership.