Initially, Tatsumi doesn't want to join Night Raid. Leone ignores him and has Bulat haul him off of his feet and to their base.
Esdeath and her interactions with Tatsumi are a gold mine for laughs.
When they first meet, she offers him a reward for having won the fighting tournament. Tatsumi thinks it's a cash prize, and although he doesn't like accepting money from the enemy, he's ready to do so and walk off. Only the "reward" is belonging to her. She slaps a collar around his neck and basically kidnaps him with the entire stunned crowd watching.
When in the palace, she casually introduces him to her subordinates. Only Tatsumi is chained to a chair by his collar, clearly unhappy. She thinks it's normal because she wants Tatsumi to stand out as her lover. After Wave explains that the collar isn't the best of ideas, Esdeath asks who among the Jaegers has a lover. Bols is the one who raises his hand. He's been married for six years.
When they are teleported to a faraway island Tatsumi asks her to hit him without leaving a serious wound in order to see if the island is an illusion. Esdeath's reaction is to blush and state that she wasn't aware that Tatsumi also had such interests.
Leone and Tatsumi start laughing, and then get his by the Boss in retribution.
The reasons that Sheele doesn't have a job at the base;
When she tried to cook it was so bad that the normally cool-headed chef Akame got annoyed.
When she tried to clean she ended up making an even bigger mess for Bulat to clean up.
When she tried to shop she mistook sugar for salt and Leone couldn't stop laughing about it.
And finally when she tried to do laundry she washed Mien's clothes... she was still in them at the time. Almost as funny: Tatsumi doesn't really mind that last one.
Leone and Akame help Lubbock and Tatsumi train by sitting on their backs. When Mine comments on this, Lubbock says he needs to step up his game, since Bulat's gone.. Leone comments he needs to work harder since he had done only half as many pushups as Tatsumi. Akame comments that would be impossible since Leone is heavier than her. Mien, Lubbock, and Tatsumi look horrified. In the next scene, Akame has a lump on her head.
Behold the Theatre. Even crazy killers can be adorable.
Tatsumi tries to play a prank on Chelsea while she's taking a bath, but she turns into Susanoo, then threatens to castrate him if he ever tries to peep on her again.
In Episode 13:
Wave's shock as Bols interacts with his family. Kurome calmly pats him on the shoulder.
Tatsumi makes a dramatic speech, only for it to be pointed out by Su that his fly is down. Everyone minus the chief makes fun of him.
Tatsumi's horror at his wonderful reunion with Esdeath.