Larval Rin is a fan-favorite meme originating from the anime series Yuru Camp (Laid-Back Camp), featuring the protagonist Rin Shima wrapped tightly in her camping blankets. Fans dubbed this form 'Larval Rin' due to her resemblance to a blue larva or cocoon while she is fully bundled up against the cold. The meme represents the pinnacle of 'comfiness' and is widely used to illustrate feelings of extreme laziness, social anxiety, or the refusal to leave the warmth of one's bed. It has evolved into a versatile reaction image for anyone who feels more like a sedentary insect than a functioning human being on cold mornings or cozy weekends.