Lv 99+ and beyond

[ShadowRPG]

I farmed Lv 99 do all Characters in Monster Viator , but once they reach Lv 99 they get +1 Lv per battle, even in Golden Pancho's, I have Cuttler at 140, Aira at 140, Berserker at 115 and Bahamutina at 105, and all my other pets keeps leveling up too, there's no difference in ATK, DEF and SPD , but their HP is increasing as normally, all have almost 33k HP.