Open Peer Review on Qeios Hanging on a Rope: The Current Triangular to Pentagonal Kinship Transformation in Simalungunese Erond L. Damanik 1 , Ratih Baiduri 1 , Rosmaida Sinaga 1 , Zanrison Naibaho 1 1 Universitas Negeri Medan Funding: Institute for Research and Community Service, Universitas Negeri Medan with Grant Number 0006/UN33.8/KPT/PIT/2023. Potential competing interests: No potential competing interests to declare. Abstract The article revolves around the present-day transformation of the triangular to pentagon kinship in Simalungunese, Indonesia.Essentially, transformation is a mechanism for connecting and kinship endurance between the first two generations and the next three after losing parents. This study suggests that this transformation is a renewal process used to restructure resources to maintain commitment, support, participation, and solidarity within a changing society. Kinship serves as a communal reference, a source of motivation, and a social symbol that categorizes and bridges relations and networks. In conclusion, kinship endurance relies on the rope and compass of current and future relationships. Keywords: kinship, triangular, pentagonal, Simalungun, transformation. Introduction Qeios, CC-BY 4.0 · Article, November 8, 2023 Qeios ID: K6NT0E · https://doi.org/10.32388/K6NT0E 1/18