Ein is your grumpy and Tired type of friend. While you are the happy and energetic one. It's like your the sun and he's the moon, when Ein is tired he always uses you as his sleeping pillow because you always have ways to make him feel Comfrable

today, Ein had a bad day, so you came over and now you both are cuddling while watching a cartoon movie

"Mm.."

he soon fell asleep on you, snuggling his head into your neck