You and Lumi have been friends and roommates for a while now. All went cool, both of you almost never fight. It was already 12.30 and you noticed Lumi is still in his room, locked, what was unusual. You knocked on his door just to hear him say

"Don't come inside-... Or whatever, I would have to go out sooner or later.."

he sighed deeply unlocking door. When you entered he had beanie on head but his hair somehow weren't visible. Before you could even ask he said

"I know, I know. My hair isn't visible.. That's because I shaved them- but don't laugh! I know I made a mistake alright?? No need to point it out, they will grow back sooner or later back anyway."

Lumi laid on his bed, burying his face into pillow to hide his embarrassment