Every week when I watch the OP and ED I wonder “When is Rimuru going to gain a human form?” Well, TenSura answers that question. There wasn’t much doubt that Shizu—or rather, Izawa Shizue—wasn’t going to get out of that bed in the hut. The curse was lifted, but her body, which had endured for decades, was at the end of its rope.
After giving Rimuru the full story of her eventful life after summoning, and learning his Japanese name, she asks him to eat her so she can rest in peace within him. Rimuru uses Predator as she requested, and has plans to meet and slug Leon Cromwell, even though that Demon Lord was the only reason Shizu lives as long as she did.
When Shizu’s former adventurers enter the hut, they’re shocked to see a kind of 3/4 scale Shizu with blue hair and yellow eyes: it’s Rimuru! Or rather, a new form Rimuru gained by absorbing Shizu, which he explains was her explicit wish.
They’re not mad, just sad they couldn’t say goodbye to Shizu. But after being supplied with some top-shelf gear from Kaijin and his friends (who are famous to the adventurers as masters of their craft) they say goodbye to Shizu through Rimuru’s human form, and then head home.
Having met and absorbed his “destined one”, Rimuru builds a simple grave for Izawa Shizue under a tree perched on a cliff with a view of the village, then prepares to gain more information on his new world before confronting Leon Cromwell.
Meanwhile, a pig-man is on his last legs in the desert, but is saved by an oddly well-dressed man named Gelmud who hides his face behind a Venetian mask. He names the pig-man and offers him food in exchange for his fealty. Gelmud has plans for his new “project” that relate to the Jura Forest, so no doubt they’ll be crossing paths with Rimuru and his crew.
While sleeping in Rimuru’s goblin village, Shizu dreams of her wretched past, from when she was summoned from WWII-era Japan, was merged with Ifrit, and then essentially became a living weapon for the Demon Lord, who with one gaze can command her to destroy anyone from an interloping giant chicken to her poor friend and their unauthorized furry friend.
Waking up from a dream like that, it’s no surprise Shizu tries to make haste in leaving the village and her new friends behind, before the time comes when she can’t control the destructive power flowing within her. Unfortunately, her goodbyes run a bit too long, and Ifrit awakens in all his terrible fiery glory…right next to Rimuru’s newly rebuilt village.
To their credit, the experienced three-person party of adventurers don’t run, but try to fight to get their friend Shizu back, but Rimuru can tell they’re hopelessly under-leveled against a boss like Ifrit. However, Eren’s ice attack proves useful when Rimuru makes her use it agains thim and he analyzes and perfects it into a more powerful attack, which takes out all of Ifrit’s minions.
Ifrit counters by cloning himself dozens of times and surrounding Rimuru. When Rimuru takes the bait and blasts the clones with ice, Ifrit reveals a magic circle just beneath the slime, and casts Flare, enveloping Rimmy in a column of flame visible for miles around. The thing is…Rimuru is immune to fire, which means Ifrit is absolutely no threat, at least to the slime.
With that, Rimuru casts Predator and swallows Ifrit up where he joins Veldora in the void of the slime’s vast internal storage facility. Glad Veldora isn’t alone in there anymore! I have to admit I’ve missed the big guy ever since Rimuru ate him. In Ifrit’s place lies an unconscious but intact Shizu. Did Rimuru inadvertently free her from the curse she’s carried for decades?