1-2) I'll overwrite your memory:
Detective Yagi of Section 1 is teaming up again with his secret love interest and junior colleague Detective Amemiya, after a long period of separation. Yagi finds out that Amemiya still wants revenge on the violent ciminal who harmed him three years ago. The feelings never stop in this love crisis between Detectives!

3) The Provocative Reportage Writer:
Big Collaboration! based on Yuu Asagiri's Story

4-5) "1 yen no Otoko" Sidestories
"Houtou to burai ~ kakugo" and "Houtou to burai+"
("Decadence and Delinquence: Resolution" and "Decadence and Delinquence+")

Related:

> 1-en no Otoko
( https://bato.to/comic/_/comics/1-en-no-otoko-r8808 )