By combining Sentient Ki Melding with Energy Absorption user is able to forcibly a person’s aura to the pattern to that of user’s. This strengthens the technique to the point where user can absorb the energy, strength, memories, and intelligence, thought pattern and physical abilities (whether superhuman or not) of another being. This transfer of abilities and memories is usually temporary but becomes permanent when user absorbs the last of a person’s life force.
After this the body of the absorbed disappears and the consciousness ceases to exist as a body. The non-host's consciousness lives inside the body of the host from this point onwards and their life span as a body ends. The host's consciousness dominates the body, though both the host and absorbed maintain separate consciousnesses: while the host has control of the body, the partner can watch from inside and is capable of speaking with the host's consent. However eventually they will dominate the shared mind so much that the absorbed essence is completely drained and simply fades away to nothing.
While the resulting fusion causes a massive power boost the technique requires a dominant personality as absorbing the total psyche of a person, runs the risk of a personality overwhelming user and taking control of their body.