The 17th episode of "Sousou no Frieren" titled "Take Care" takes place in a remote cabin where the main characters seek shelter from a cold wave. The episode begins with Sein's determination to reunite with his friend Gorilla in Tür, a trading city in the north. Frieren recognizes Sein's goal while the group decides to stay in the cabin provided by the villagers due to the harsh winter conditions.

Sein gathers firewood, and Fern buys ingredients for dinner, noting the extreme cold. The group settles into the cabin and enjoys the comfort compared to their previous accommodations. Frieren mentions a magic shop in the village that might possess spells of legendary caliber, which fascinates Stark.

The plot then shifts to an interpersonal conflict between Stark and Fern. Stark asks Sein for help in mediating their disagreements, which arose from a playful argument that upset Fern. Sein, taking on the role of mediator, advises Stark and Fern separately and encourages them to reconcile. Both Stark and Fern admit their part in the argument and apologize to each other.

Frieren, who has observed Sein's mediation skills, appreciates his efforts and talks to him about why she invited him on her journey. Frieren reflects on her own past and her experiences with Himmel the Hero, drawing parallels between Sein's situation and her own journey.

As the episode progresses, Sein decides to continue his journey alone to follow Gorilla, leaving Frieren and the others behind. Their farewell is brief, and Frieren expresses her trust in his ability to take care of himself.

The episode ends with Stark, Frieren, and Fern preparing to leave the cabin as the cold wave subsides. Frieren decides that their next destination will be Äußerst, the City of Magic, setting the stage for the upcoming events of the story. The final scenes hint at the challenges and adventures awaiting them in the city, particularly regarding the first-class mage exam.