Question: can kekkei genkai be learned?
Answer: Some kekkei genkai like Mu's dust release (technically called as kekkei tōta, as it is an advanced form of kekkei genkai) can be taught as in it was taught to Ōnoki. ... She can combine two of them at a time and create two different kekkei genkai, namely Boil Release (water + fire) and Lava Release (Earth + fire).