Taking place right after the events of Octo Expansion, Agent 4(Amy) gets an unexpected new roommate. Her name is Crystal(Agent 8), and she had just moved to Inkopolis, and being the first Octoling to do so(other than Marina) she hopes to leave her past behind. But when DJ Octavio escapes, and forms a new plan to take...
Rosalina basically lived with herself and her lumas, so she is like a mother. Shulk, on the other hand, lives completely a different life then Rosalina. They get to know each other in a weird way as you can say it.
A down-on-his-luck Necromancer and his dimwitted skeleton companion find a powerful, ancient artifact. But when it accidentally goes off and kills a powerful Paladin, they're forced to flee town. After meeting up with a young woman and her Ogre companion, the Necromancer finds a new purpose and a new life.