>>280291285
>>280297370
that's because the author has a smell fetish. he even sold perfume scented like the characters. riko shits in the elevator and they talk about it. they describe in detail what nanachi smells like because she used to be stinky but the gift of the abyss transformed her and now she isn't smelly anymore. he isn't doing it to include the mundane, he's just got a weird smell thing. hell one of the characters in iruburu is made of smell