When Did We Start Dating?!

‘When did we start dating?!’
‘So you’re saying that we’re not dating, but we’re sex partners…?!!’
‘Jinho’, who’s going to be discharged from his military service soon, unknowingly became his childhood friend, Juri’s—who was previously a school bully and a virgin—sex partner!
‘But if we’re sex partners, shouldn’t we have sex?’
‘Wanna die?’