He should have just went by his instincts and got a licky and sucky action going on with those before his execution.
At least then it would be justified. The only thing I want to know is whether or not and how they are going to make it up to him when the truth comes out. Granted, most of the characters just sweep any wrong doing towards the MC like it was nothing....
... I hope she stays that way. Sure, it'd be odd to have a young adult fox quarelling with a loli Rangii, but it might eventually give Rangii enough pressure that she too turns adult from time to time?