He took Makuro Souji down AND scarred Jouichi
He became number zero almost immediately after joining and still had enough juice to handle an S-rank sweeper afterwards lol
Touya judged to collect the life of the one with the StL memory right after the game ends, but since that memory and everything on that day was taken by Yukiide, its him whose life will be confiscated instead of Baku
I think Nowa Sr. definitely values his family very much and wants to see them grow in their own ways, which is why he dissed his grandfailson to spur him into fighting Midara and why he saved Shion even if it means giving up his biggest secret (which we already know about a long time ago but...
I think its funny how for hiw much people give him flak for being useful through sheer luck, Kaji has grown into a formidable character and under certain life or death circumstances could rise to the same stage as Baku and Hal. If Baku is the demon and Hal is a god then Kaji is the unbreakable...
The whole yen thing was a whimsical way of expressing his opinion. The 10 yen he gave Kaji was based on his first impression of a gambling wimp. It probably changed a lot after seeing how he evolved but since they barely interact I cant tell how much Kaji is now