Poor bats indeed ( ̄∇ ̄") But in Ryoma's defense they were asked by the city to free those caves of monsters, so someone would have to kill all of them eventually.
Keep reading manga, cause 1. Miss Ryoma 2. Want to see Ryoma 3. Miss Ryoma's Cheekiness 4. Want to see Ryoma matches 5. Want to know the story Conclusion : haha, I just love Ryoma so much (=・ω・=)
We found another daddy. And he too....