The main reason why I want him back is to help Azusa, I don't know why I can imagine Senzaki helping him ever so slight it. The new antagonist seems to be a pain in the ass, and Karino doesn't seem to have enough power, not with him being half-assed and not honest with his intentions (to protect Azusa of course), so we need a crazy mother fucker in the team, and Senzaki-Tatsumi team can be perfect for the spot, I would love them to support the main pair, as they're more fucked up honest with their shit as an opposition with our protagonists.
Honestly, the only reason I got interested in the manga it is because the main characters look like Nai and Gareki(?), it seems interesting though, but we got a cliffhanger in a really interesting part, it is a bummer it has less than 10 chapters, I hate waiting (like everyone else).
The main reason why I want him back is to help Azusa, I don't know why I can imagine Senzaki helping him ever so slight it. The new antagonist seems to be a pain in the ass, and Karino doesn't seem to have enough power, not with him being half-assed and not honest with his intentions (to protect Azusa of course), so we need a crazy mother fucker in the team, and Senzaki-Tatsumi team can be perfect for the spot, I would love them to support the main pair, as they're more fucked up honest with their shit as an opposition with our protagonists.