I love the characters' designs, to be honest Im here because this is prequel to Kan-chan's story. Somehow I see why he became abusive but its still wrong. In the long time that they are in a relationship, Yumi does not rely on him, Yumi has someone he loves which is Maayami since middle school, he just cant admit because his pride is hurt. So when in hs ig he tried it with Kan-chan, they clicked, but thats just it, Kan was someone that replaced Maa-kun in Yumi's life, but he doesnt really forget about Maa-kun, tbh Yumi was at fault here, but Im just happy that my Maa-kun is now happy with him. Maa-kun is precious so Yumi is in the right hands.
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)
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Personal opinion - best reading order 1, 0, 2, 3
Sabita Yoru Demo Koi Wa Sasayaku