Lord_of_Divine
will they be in the harem?:danmachi---- Hestia-Ais Wallenstein-Ryuu Lion-Lefiya Viridis-Alicia Forestlight-Anakitty Autumn-Liliruca Arde-Line Arshe-Lyra-Artemis-Astraea-Meryl Tear-Eina Tulle-Misha Flott-Elfy Colette-Rose Fannett-Fina-Gojouno Kaguya-Tiona Hiryute-Tione Hiryute-Kali-Daphne Lauros-Cassandra Ilion
semi-retired seems much better to me, you can get interesting ideas and can also be seen as a teacher for the new ones in the family, you can make him come back in the arc of the xenos stopping the loki family, I say it would be his best entry and apart from that he could take advantage of this event to become active, by the way, Bella will have more experience and the other members too, she can also use all the arcs prior to xeno to improve the other characters and their interactions, and how her arrival affects orarion, Quietly, so as not to hide their power, you can make the strong feel the precision of their strength but not how strong it is (in case you don't like mcs who "hide"), and many more ideas that you can get as a semi-retired . (before I knew it I wrote a lot xd) [Google translator]
I think he should stay retired. Let him train the new familia members and craft, build, and enchant items whenever he feels like it. He is The Miner. If he wants, he could just dig a hole directly down to the bottom floor of the dungeon. If his familia gets targeted by a war game, he could just go to the God in charge of the enemy familia, let them know he is the follower of Tet, and let them know he is not boind by divine law meaning he can kill gods without punishment. Everyone will leave him alone afterward
The question is, to not go deeper on the dungeon while he could be there to protect his familia, learn dungeon secrets and make the world a better place, or, to stay on the side lines and be selfish, that is not what a main character should do, you know? To not be involved with anything, that would be like deleting your main character and replacing it with Bella, because she is the one that will be doing things while the mc stays on the side lines, there is no choice here, he has to be active for it to continue being an interesting story