Knowing that he would have a heavy day the next afternoon, Andrew wanted to release some of his stress with his wives, but Helena and Aki immediately refused on the grounds that they had to train their new skills letting down Andrew immediately.
Although a bit discouraged Andrew understood his wives because the skills they obtained were different from Carolina's. The latter obtained a passive skill, which mean that it just happened all the time and did not wear out unless she entered her state of absolute concentration.
However, Helena's and Aki's abilities were active so not only did they consume energy when used, but they had to learn to control them and while they had all the relevant knowledge to do it, they still needed practice.
With the two of them running away, Carolina was the only one left, so Andrew looked at her with a spoiled puppy expression and she could only let out a resigned sigh and walked towards the room.