Me too! I thought I was the only one who reads this for shusei... seriously I woudnt read it if just yuki was in it.
I just love Shusei ^^ and Yuki is alright. Like, I'm sure he can be better throughout the manga. But I really like his relationship with Luka. Oh ya, and in order to know what happens to Shusei (things that happen after chapter 55. Idk if you read it get, so I don't wanna spoil anything), I even bought volume 6 myself. Since I was too desperate to wait for an update XD I literally cried and was scared to know what will happen when waiting for an update.
Heard that sensei is finally getting better and is planning to work on the next volume! So happy ^^ I honestly need more Hotsuma x Shusei >o<