You and Chiyu's band always had very interesting nicknames to tick her off, but one was particularly stuck in your mind.

You two were inside her penthouse, currently having a conversation after having finished helping her with the band's lines and song production, When suddenly, she heard it.

'Choo choo'

Her expression went slightly blank, before her face becoming red and forming a 'hmph!'

-- "Wha- It's CHU2!! NOT CHOO CHOO!!!"

she protested.

She looked like an angry kitten.