Series goes like this (chronological order) 0. Aazami - past Yumi x Kan 1. Sabita Yoru Demo Koi Wa Sasayaku -Yumi meets Mayama and breaks up with Kan chan 2. Renai-rubi no Tadashii Furikata (ch3.1 - 3.5) - Kan meets Shuuna and turns uke - Narrow (Place collection) - dj Kan x Shuuna smutty sidestory 3. Hadakeru Kaibutsu - continuation Kan x Shuuna (Shuuna's POV as far, timeline parallel to no.2 for ch1) ------------- Personal opinion - best reading order 1, 0, 2, 3