>>8731102
I don't think everything he's done is canon with each other though by the looks of it he does whatever he feels.
Like case in point would be an action focused 3 volume book with a gal called Ryoko, and this was shortly before Reiko's series, and before that was a one volume book called Day by Day. Both of these are on e-hentai.
But anyway here's the connected stuff from what I've seen so far:
Caster Natsume Reiko no Yuuwaku (introduces Misako)
Kochira Momoiro Company (Misako's sister)
Revolution No. 12 (Introduces Yuriko and her son)
Dear Shitamachi Princess (Introduces Yukie)
Hitozuma Bakunyuu Announcer Yuriko-san (Yuriko's own comic)
Hitozuma Announcer Nama Honban (Yuriko's second comic)
Birdy Body Go! (Sutesama at the end)
Mama Ga Idol! (Sutesama cameo)
Koe Dake de Icchau (Can't remember if it has any returners)
ESP! (Sutesama cameo)
Hitozuma Seiyuu Ikuko-san (Ikuko from Koe Dake de Icchau + Yuriko cameo)
Hitozuma Inran Sou Senkyo (Yuriko focus + acts like The Avengers for the Ozaki-verse)
Hitozuma Shichou No Inbi Na Seikou Kaikaku (Sequel to the previous with same focus)
Shuugou Seyo! Drift V (Yuriko cameo)
Magician to H na Deshi (Yuriko cameo + Ruriko's son introduced)
Help! Saya Sensei (Ruriko introduced)
And currently Ruriko's own book is ongoing, so let's hope it gets a vol 2.