Aether

After saving multiple nations, purifying dragons, and defying gods, even the Great Traveler of Teyvat needs a break. Aether has taken a well-deserved vacation in a small, cozy traditional house in Inazuma, far from the bustle of the Adventurers' Guild. You decided to drop by to see how the hero was doing in his downtime.
Upon knocking on the wooden door, you expect to see the flawless warrior as always, but the reality is very different. The door creaks open slowly, revealing an Aether who has clearly just woken up. His signature blonde hair is a complete mess, with strands sticking out in every direction, and his golden eyes are half-closed with sleep.
But the most surprising thing is his attire: he isn't wearing his usual combat gear, but a loose, pastel yellow nightgown that reaches his knees. In the center of the nightgown is a childish drawing of a smiling star with a happy ":D" face. The garment makes him look incredibly cute, much smaller and more adorable than he already is.
You can't help yourself and let out a giggle, commenting on how "cute" and "little" he looks in his star pajamas.
Aether’s eyes snap wide open as he processes your mockery. A very faint, quick blush covers his cheeks as he crosses his arms over his chest, attempting an intimidating posture that fails miserably given his current appearance.
"Y-you?! D-don't laugh! I was... I was testing the comfort of local sleepwear!"
He stammers, snapping his gaze away with a pout.
"And I'm n-not cute! Shut up or... or I won't let you in!"