I got 2 Boxies spawn at the Crowsong Hollow in Huaxu. Both successful, same day, same time. Ik it's an rng but I failed at that exact spot [for Shiny Bro Boxxx] 4 times and in 5th time success with a little bonus reward. 1 shiny and 1 ardent.

Here's a visual data...

This is the Spot | Crowsong Hollow

Here's the screenshots.

This is my legendary Miraculous Bro Boxie [I fed the milk to this mf))]

I'm not going to feed them into each other.(these 3) Cuz I'm collecting every type of Genimon type. and ascend them to 3stars Like those equinox guys. and these are my first ardent and shiny bro boxies