Glad Hamazura ended up with Takitsubo, if he was with Mugino, his body would start breaking down sooner than later.
About Takitsubo, did she use that drug in addition to her ability when fighting Kakine in Vol.15?
If yes, does her AIM Stalker (not boosted with drugs) affect Kakine and Beetle 5 unconsciously, leading to the change in Dark Matter hierarchy?
After all, doubt she'd use those drugs again this volume.