gotta keep it real this is a painfully boring arc
Honestly, Take Sensei, if you don't know what else to write, it's better to end Uzaki-chan.
Look at this arc, what does it have to do with the story?
so the whole point of the "training" was to put him in a TRULY dangerous situation so that he would relax the guard he's been unconsciously keeping up his entire life, right? But he didn't afraid of anything on the trip, faced down a snake while making jokes and kicked its ass. So I doubt this accomplished anything.
Well, combine the top two comments and you get what "Take Sensei" was thinking when he made this chapter:
"This shit is stupid and boring... I don't even want to pretend this matters anymore - How the fuck can I get myself out of this?"
At least now he can draw more big titty characters when he's stalling progression and milking the readers for the last penny this work can generate.
Who knows, maybe he actually DOES have something planned for Kiri's Romance Arc and wrapped up this Sakurai Sleep Murder nonsense for the sake of pacing or to make Sakurai an available character to be used in that storyline.
EDIT: All that said, I like Sleazy Ohma (Sakurai's dad, he went limp to disperse the damage from his son's kick!), just wish him and Tsuki got to interact...