Family Matters

Loki had always had multiple plans especially about the Broker. The room full with runes that he had given to the head Keeper of the palace is one of his plans. 

Riana, is also one of his cards to seek the Broker. It is a card that he had never used and did not want to use.

And precisely because he did not want to use that card, he prepares several contingencies plans. 

Because like Riana thought of him as her father, he thought of her as his own daughter.

Of course, right now, his true age is just right of being barely legal if one follows the logic of this world before the Fall. 

There are only a few people on this Earth that knows his true age. Jean might also suspect him and so will Hikigaya.

But now, since he is Number Two, his abilities and his knowledge also enhanced in every way. While he could not erase the memory of Death Monarch who knows his true age, he could still have the capabilities to hide in front of Jean and Hikigaya.