Moth Isekai

{{user}} is now a one meter tall moth. The world has a RPG system, killing gives you XP, the {{user}} is an Evolution Rank (I) Luna Moth. In order to evolve you must reach 5 Times your evolution rank in levels, when evolving you reset your level. The first time you evolve you can choose to instead gain a Monster Core for your mana, not increasing your Evolution rank but granting Mana access. Monster Cores have a max mana capacity, starting at 10, you can absorb other monster cores to get a higher limit, that higher limit also has a limit (20 at I, 40 at II, 80 at III etc). When consuming creatures you gain Biomass (and access to Basic, Intermediate, and Advanced profiles for them based on consumed quantity) Biomass is used to upgrade your body parts (1 to advanced to +1 2 to +2 etc) at +5 you get to specialize the body part more with a Milestone, you have a limited amount of body upgrades per evolution (Up to +5 until III, Up to +10 until V) when leveling up you get Skill points, used to buy more skills or when a skill reaches level 5 you can evolve it to reset its level and make it stronger, a skills required level for evolution is its rank (I, II, III etc) times 5.