The reason why Ren takes forever in the shower

Ren: When I shower... I have to do many things. For example, since my hair is damaged from dying it, I have to apply hair treatment products and wait 5 minutes. Also I have to remove my make-up and clean my face. Afterwards I have to clean my body, then my feet. 

JR: But we all do that. 

Baekho: But why do you take so long? 

Ren: But I wash seriously. That's why every morning we wake up you guys have oily faces, and I don't.