The cute boop earns a soft chuckle from Shinji, who follows it up with a quick peck to Kai's lips. A sweet little gesture to reward a sweet sentiment. If Kai's willing to accept the compliment, then maybe Shinji shouldn't brush off those kind words so quickly, either.

"Maybe you've got a point, too." They can both be good bug backdrops. "Just think this is a nice look for you."