Sociolinguistics has seen an emergence of new theoretical perspectives that somehow cater for the, according to Li, 'complex linguistic realities of the twenty-first century' (2017, p.14). Thus 'overwriting' conventional ways of understanding language/language use and its relation to identity construction. Taking these changes as a starting point, this paper expands research into complex identity construction of students attending a complementary language school and investigation of linguistic repertoires of German language learners through language portrait work. The motivation for the research presented in this paper is to explore the relationship between linguistic repertoires and complex identities of young people attending a complementary language school in a multilingual city. It suggests an organic approach to investigating the relationship between young people as social beings, that are more than 'just' language learners "per se," and the ways they use organic linguistic repertoires (OLRs) to construct their complex linguistic identities. The findings presented in this paper highlight the complexities of young people's identities in relation to their OLR. The term OLR points towards the dynamic nature of 'languages'. Although these terms point toward a dynamic understanding of language and identity the term OLR seems to foreground the changing nature of these, pointing toward their 'aliveness'.