International student ministry (ISM) has a long history; however, the recently emerged diaspora missiology paradigm for ISM has seldom been employed. This book is an attempt to explore such an approach. In addition to this paradigmatic uniqueness, the choice of a relational perspective is a departure from the popular programmatic orientation of Christian mission and practice. This is not merely another book on ISM; rather its distinctive approach is integrative of two paradigms, i.e. diaspora missiological paradigm and relational paradigm.