Complex sentence: Akkorokamui enjoys the sea and offerings which reflect this: fish, crab, mollusks, and the like are particular favorites of Akkorokamui, which give back that which it gave.
Split into simpler sentences: Akkorokamui enjoys the sea and offerings which reflect this. Fish, crab, mollusks and the like are particular favorites of Akkorokamui which give back which it gave.